Using a 3.8% discount rate calculate the NPV Payback Profitability index and I

Using a 3.8% discount rate calculate the NPV Payback Profitability index and IRR for investment projects; Project 1 initial investment= $52000 cash
inflows of 100000 for 1-5 years and 50000 for 6-10 years.

Project 2 initial investment= $1050000 incash flow 400000 for 1-3 years $0 for 4-7 years and $250000 for years 8-10

Project 3 initial investment= $820000 incash flows300000 for years 1-5 $0 for 6-9 100000 for year 10

Project 4 initial investment= $820000 cash inflows of 300000 for years 1-5 $0 for years 4-7 and 100000 for years 10

part 2 assuming a budget of $1300000 what are thw recomendations for the tree projects in the abouve problem?

assuming a budget of $2100000 what are your recomendations for above problem?