Kingston Company uses the dollar-value LIFO method of computing inventory. An external price index is used to convert ending inventory to base year. The company began operations on January 1, 2018, with an inventory of $275,000. Year-end inventories at year-end costs and cost indexes for its one inventory pool were as follows Year Ended December 31 2018 2019 2020 2021 Ending Inventory at Year-End Costs $378,000 480,260 456, 550 440,000 Cost Index (Relative to Base Year) 1.08 1.18 1.15 1.10 Required Calculate inventory amounts at the end of each year. (Round intermediate calculations and final answers to the nearest whole dollars.) Ending Inventory DVL Cost Inventory Layers Converted to Base Year Cost Inventory Layers Converted to Cost Year-End Cost Index Inventory Layers at Base Year Cost Inventory Layers Converted to Cost Inventory Year-End Inventory at Year- End Cost Date Layers at Base Cost - Index Year Cost Base Base 2018 Base 2018 2019 Base 2018 2019 Base 2018 2019 2021 01/01/2018 12/31/2018 12/31/2019 12/31/2020 12/31/2021