Answer:
value of new lagoon will be $4.05 million
Step-by-step explanation:
We have given cost = $2.3 million
It is given that new lagoon will be 65% larger
So size of lagoon will be 1+0.65 =1.65
Sizing exponent for this project is given 1.13
So x = 1.13
New lagoon is given by

So new lagoon will be equal to
$ million
So value of new lagoon will be $4.05 million