Finding the Fourth Proportional to 961,404.90, 1,326,684.72 and 525,735.77

Step by Step Solution

1. Step 1: Write the proportion equation
   961,404.90 : 1,326,684.72 = 525,735.77 : x
2. Step 2: Convert to fraction form
   961,404.90/1,326,684.72 = 525,735.77/x
3. Step 3: Cross multiply
   961,404.90x = 1,326,684.72 × 525,735.77
4. Step 4: Simplify right side
   961,404.90x = 697,485,608,154.52
5. Step 5: Solve for x
   x = 697,485,608,154.52/961,404.90
6. Step 6: Final answer
   x = 725,485.81