The only question I need help with are #3 the second part I got 129000 which is incorrect and #4 weighted average the cost of merch 10921800 which is incorrect and gross profit 8953200 which is incorrect

The last part of the question: Invetory March 31 all three i need answers to

Periodic Inventory by Three Methods

The beginning inventory at Midnight Supplies and data on purchases and sales for a three-month period ending March 31, are as follows:

Date		Transaction	Number of Units		Per Unit		Total
Jan. 1		Inventory	7,500		$75.00		$562,500
10		Purchase	22,500		85.00		1,912,500
28		Sale	11,250		150.00		1,687,500
30		Sale	3,750		150.00		562,500
Feb. 5		Sale	1,500		150.00		225,000
10		Purchase	54,000		87.50		4,725,000
16		Sale	27,000		160.00		4,320,000
28		Sale	25,500		160.00		4,080,000
Mar. 5		Purchase	45,000		89.50		4,027,500
14		Sale	30,000		160.00		4,800,000
25		Purchase	7,500		90.00		675,000
30		Sale	26,250		160.00		4,200,000

Required:

1. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the first-in, first-out method and the periodic inventory system.

Merchandise inventory, March 31	$fill in the blank 1
Cost of merchandise sold	$fill in the blank 2

2. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the last-in, first-out method and the periodic inventory system.

Merchandise inventory, March 31	$fill in the blank 3
Cost of merchandise sold	$fill in the blank 4

3. Determine the inventory on March 31 and the cost of merchandise sold for the three-month period, using the weighted average cost method and the periodic inventory system. Round the weighted average unit cost to the nearest cent and final answers to the nearest dollar.

Merchandise inventory, March 31	$fill in the blank 5
Cost of merchandise sold	$fill in the blank 6

4. Compare the gross profit and the March 31 inventories, using the following column headings. Enter all amounts as positive numbers.

	FIFO	LIFO	Weighted Average
Sales	$fill in the blank 7	$fill in the blank 8	$fill in the blank 9
Cost of merchandise sold	fill in the blank 10	fill in the blank 11	fill in the blank 12
Gross profit	$fill in the blank 13	$fill in the blank 14	$fill in the blank 15
Inventory, March 31	$fill in the blank 16	$fill in the blank 17	$fill in the blank 18