Brady Construction Company contracted to build an apartment complex for a price of $5,800,000. Construction began in 2016 and was completed in 2018. The following is a series of independent situations, numbered 1 through 6, involving differing costs for the project. All costs are stated in thousands of dollars.

Estimated Costs to Complete (As of the End of the Year) Costs Incurred During Year Situation 2016 2017 2018 2016 2017 3,5101,140 1,580 ,140 2,7203,510 2,720 1,580 2,3702,240 3,510 2,140 915 5803,0801,8604,060 2,140 5803,0802,6005,400 2,420 2018 1,580 2,3701,140 2 3 4 5803,080 1,160 4,060