information on four investment proposals is given below: investment proposal a b c d investment required $ (190,000) $ (180,000) $ (170,000) $ (900,000) present value of cash inflows 267,400 249,400 259,300 1,197,500 net present value $ 77,400 $ 69,400 $ 89,300 $ 297,500 life of the project 5 years 7 years 6 years 6 years required: 1. compute the profitability index for each investment proposal. (round your answers to 2 decimal places.) 2. rank the proposals in terms of preference.
