Answer:
Thye answer to your question is cost = $ 11900000
Explanation:
Data
base = 170 m
height = 28 m
Area = ?
Price = ?
cost = $2500/1m²
Process
1.- Calculate the area of the field
Area = base x height
-Substitution
Area = 170 x 28
-Result
Area = 4760 m²
2.- Calculate the cost using proportions
1 m² ---------------- $2500
4760 m² ---------------- x
x = (4760 x 2500) / 1
x = $ 11900000