What is the payback period for the set of cash flows given above?

Note: Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

Payback period

yearsYear

$0$

$1$

$2$

$3$

$4$

Cash Flow

$-$$

$8,500$

$2,100$

$3,000$

$2,300$

$1,700$

What is the payback period for the set of cash flows given above?

Note: Do not round intermediate calculations and round your answer to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$