Finding the Fourth Proportional to 2,351.20, 3,526.89 and 707.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,351.20 : 3,526.89 = 707.98 : x
2. Step 2: Convert to fraction form
   2,351.20/3,526.89 = 707.98/x
3. Step 3: Cross multiply
   2,351.20x = 3,526.89 × 707.98
4. Step 4: Simplify right side
   2,351.20x = 2,496,946.41
5. Step 5: Solve for x
   x = 2,496,946.41/2,351.20
6. Step 6: Final answer
   x = 1,061.99