Finding the Fourth Proportional to 2,717.52, 4,076.24 and 868.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.52 : 4,076.24 = 868.61 : x
2. Step 2: Convert to fraction form
   2,717.52/4,076.24 = 868.61/x
3. Step 3: Cross multiply
   2,717.52x = 4,076.24 × 868.61
4. Step 4: Simplify right side
   2,717.52x = 3,540,662.83
5. Step 5: Solve for x
   x = 3,540,662.83/2,717.52
6. Step 6: Final answer
   x = 1,302.90