Fox Enterprises is considering six projects for possible construction over the next four years. The expected $($present value$)$ returns and cash outlays for the projects are given below. Fox can undertake any of the projects partially or completely. A partial undertaking of a project will prorate both the return and cash outlays proportionately.

$\backslash$table$[[,$Cash outlay $($$$1000),],[$Project$,$Year $1,$Year $2,$Year $3,$Year $4,$Return $($$$1000)$