two$-$payment stream consisting of $$2,500$ due today and $$1,900$ due in nine months is to be replaced by an economically equivalent stream comprised of an undetermined payment due in ten months and a payment of $$2,000$ due in twenty$-$two months. Calculate the unknown replacement payment if money is worth $5\%$ compounded monthly.

a

$$1,611\mathrm{.}40$

b

$$2,631\mathrm{.}40$

c

$$2,619\mathrm{.}40$

d

$$2,611\mathrm{.}40$

e

$$2,811\mathrm{.}40$a

ans