Finding the Fourth Proportional to 2,517.31, 3,776.01 and 873.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.31 : 3,776.01 = 873.91 : x
2. Step 2: Convert to fraction form
   2,517.31/3,776.01 = 873.91/x
3. Step 3: Cross multiply
   2,517.31x = 3,776.01 × 873.91
4. Step 4: Simplify right side
   2,517.31x = 3,299,892.90
5. Step 5: Solve for x
   x = 3,299,892.90/2,517.31
6. Step 6: Final answer
   x = 1,310.88