Answer: $531,080
Step-by-step explanation
The Modified Accelerated Cost Recovery System (MACRS) is a depreciation schedule for assets and can be based on various year denominations. This one is of a 7 year type and the rates are specified below;
The ending book value at the end of year 4 would be;
= Original Cost - Accumulated Depreciation
= 1,700,000 - (1,700,000 * ( 14.29% + 24.49% + 17.49% + 12.49%))
= 1,700,000 - (1,700,000 * 68.76%)
= 1,700,000 - 1,168,920
= $531,080