Answer:
$237,120
Step-by-step explanation:
year depreciation % depreciation expense book value
1 33.33% $1,066,560 $2,133,440
2 44.45% $1,422,400 $711,040
3 14.81% $473,920 $237,120
the book value at the end of the project's life = $237,120, which is equivalent to 7.41% (the fourth year according to MACRS depreciation)