A firm with a 10 percent cost of capital is considering a project for this year's capital budget. The project's expected after-tax cash flows are as follows: Year: 0 1 2 3 4 Cash -$10,000 $4,700 $3,700 $4,300 $4,200 flow: Calculate the project's profitability index (PI). O 1.3430 O 1.6900 O 1.1543 O 1.5364 O 0.6570