Use the below information to answer the following question.

Income Statement
For the Year
Sales	$28,400
Cost of goods sold	21,200
Depreciation	2,700
Earnings before interest and taxes	$ 4,500
Interest paid	850
Taxable income	$ 3,650
Taxes	1,400
Net income	$ 2,250
Dividends $900

Balance Sheet
End-of-Year
Cash	$ 550
Accounts receivable	2,450
Inventory	4,700
Total current assets	$ 7,700
Net fixed assets	16,900
Total assets	$24,600
Accounts payable	$ 2,700
Long-term debt	9,800
Common stock ($1 par value)	8,000
Retained earnings	4,100
Total Liab. & Equity	$24,600

Assume the profit margin and the payout ratio for this firm are constant. If sales increase by 6 percent, what is the pro forma retained earnings?

$5,450

$5,721

$5,531

$5,648

$5,028