Finding the Fourth Proportional to 2,581.32, 3,871.48 and 731.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.32 : 3,871.48 = 731.98 : x
2. Step 2: Convert to fraction form
   2,581.32/3,871.48 = 731.98/x
3. Step 3: Cross multiply
   2,581.32x = 3,871.48 × 731.98
4. Step 4: Simplify right side
   2,581.32x = 2,833,845.93
5. Step 5: Solve for x
   x = 2,833,845.93/2,581.32
6. Step 6: Final answer
   x = 1,097.83