Finding the Fourth Proportional to 1,238.72, 1,708.92 and 796.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.72 : 1,708.92 = 796.52 : x
2. Step 2: Convert to fraction form
   1,238.72/1,708.92 = 796.52/x
3. Step 3: Cross multiply
   1,238.72x = 1,708.92 × 796.52
4. Step 4: Simplify right side
   1,238.72x = 1,361,188.96
5. Step 5: Solve for x
   x = 1,361,188.96/1,238.72
6. Step 6: Final answer
   x = 1,098.87