Given a forward rate for year 1 of 4.9%, a forward rate for year 2 of 5.7%, a forward rate for year 3 of 5.4% and a forward rate for year 4 of 5.1%. Determine the value at time t=0 a series of payments of size 1000 made at the end of years of t=1, t=2, t=3, t=4.