Finding the Fourth Proportional to 2,438.76, 3,658.50 and 707.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,438.76 : 3,658.50 = 707.16 : x
2. Step 2: Convert to fraction form
   2,438.76/3,658.50 = 707.16/x
3. Step 3: Cross multiply
   2,438.76x = 3,658.50 × 707.16
4. Step 4: Simplify right side
   2,438.76x = 2,587,144.86
5. Step 5: Solve for x
   x = 2,587,144.86/2,438.76
6. Step 6: Final answer
   x = 1,060.84