Depreciation by Three Methods; Partial Years Perdue Company purchased equipment on April 1 for $34,060. The equipment was expected to have a useful life of three years, or 4,600 operating hours, and a residual value of $1,860. The equipment was used for 800 hours during Year 1, 1,600 hours in Year 2. 1,400 hours in Year 3, and 2,683.333333 hours in Year 4. Required: Determine the amount of depreciation expense for the years ended December 31, Year 1 Year 2, Year 3, and Year 4, by (a) the straight-line method, (b) the units-of-activity method, and (c) the double-declining-balance method. Note: Round all values for each depreciation method and each year to the nearest whole dollar. a. Straight-line method Year Amount