Finding the Fourth Proportional to 2,503.31, 3,753.72 and 836.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.31 : 3,753.72 = 836.87 : x
2. Step 2: Convert to fraction form
   2,503.31/3,753.72 = 836.87/x
3. Step 3: Cross multiply
   2,503.31x = 3,753.72 × 836.87
4. Step 4: Simplify right side
   2,503.31x = 3,141,354.53
5. Step 5: Solve for x
   x = 3,141,354.53/2,503.31
6. Step 6: Final answer
   x = 1,254.88