please explain how you got your answers.

The management of Unter Corporation, an architectural design firm, is considering an investment with the following cash flows: Year Investment Cash Inflow $58,000 8,000 $4,000 $8,000 $11,000 $14,000 $17,000 15,000 $13,000 $11,000 10,000 10,000 4 8 Required 1. Determine the payback period of the investment. (Round your answer to 1 decimal place.) Payback peri years