Finding the Fourth Proportional to 782,131.41, 1,078,783.77 and 717,807.98

Step by Step Solution

1. Step 1: Write the proportion equation
   782,131.41 : 1,078,783.77 = 717,807.98 : x
2. Step 2: Convert to fraction form
   782,131.41/1,078,783.77 = 717,807.98/x
3. Step 3: Cross multiply
   782,131.41x = 1,078,783.77 × 717,807.98
4. Step 4: Simplify right side
   782,131.41x = 774,359,598,800.49
5. Step 5: Solve for x
   x = 774,359,598,800.49/782,131.41
6. Step 6: Final answer
   x = 990,063.29