Finding the Fourth Proportional to 2,332.78, 3,498.33 and 772.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,332.78 : 3,498.33 = 772.50 : x
2. Step 2: Convert to fraction form
   2,332.78/3,498.33 = 772.50/x
3. Step 3: Cross multiply
   2,332.78x = 3,498.33 × 772.50
4. Step 4: Simplify right side
   2,332.78x = 2,702,459.93
5. Step 5: Solve for x
   x = 2,702,459.93/2,332.78
6. Step 6: Final answer
   x = 1,158.47