Finding the Fourth Proportional to 2,591.73, 3,871.56 and 2,331.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.73 : 3,871.56 = 2,331.32 : x
2. Step 2: Convert to fraction form
   2,591.73/3,871.56 = 2,331.32/x
3. Step 3: Cross multiply
   2,591.73x = 3,871.56 × 2,331.32
4. Step 4: Simplify right side
   2,591.73x = 9,025,834.64
5. Step 5: Solve for x
   x = 9,025,834.64/2,591.73
6. Step 6: Final answer
   x = 3,482.55