Finding the Fourth Proportional to 788,441.30, 1,178,342.25 and 575,657.83

Step by Step Solution

1. Step 1: Write the proportion equation
   788,441.30 : 1,178,342.25 = 575,657.83 : x
2. Step 2: Convert to fraction form
   788,441.30/1,178,342.25 = 575,657.83/x
3. Step 3: Cross multiply
   788,441.30x = 1,178,342.25 × 575,657.83
4. Step 4: Simplify right side
   788,441.30x = 678,321,942,632.32
5. Step 5: Solve for x
   x = 678,321,942,632.32/788,441.30
6. Step 6: Final answer
   x = 860,332.84