Suppose your firm is considering investing in a project with the cash flows shown below, that the required rate of return on projects of this risk class is 9 percent, and that the maximum allowable payback and discounted payback statistics for the project are 3.5 and 4.5 years, respectively.

Time:	0	1	2	3	4	5	6
Cash flow	$5,100	$1,280	$2,480	$1,680	$1,680	$1,480	$1,280
Use the discounted payback decision rule to evaluate this project. Discounted payback__________ years