Finding the Fourth Proportional to 2,581.34, 3,871.85 and 732.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.34 : 3,871.85 = 732.20 : x
2. Step 2: Convert to fraction form
   2,581.34/3,871.85 = 732.20/x
3. Step 3: Cross multiply
   2,581.34x = 3,871.85 × 732.20
4. Step 4: Simplify right side
   2,581.34x = 2,834,945.55
5. Step 5: Solve for x
   x = 2,834,945.55/2,581.34
6. Step 6: Final answer
   x = 1,098.25