Finding the Fourth Proportional to 861,723.41, 1,188,870.50 and 498,949.25

Step by Step Solution

1. Step 1: Write the proportion equation
   861,723.41 : 1,188,870.50 = 498,949.25 : x
2. Step 2: Convert to fraction form
   861,723.41/1,188,870.50 = 498,949.25/x
3. Step 3: Cross multiply
   861,723.41x = 1,188,870.50 × 498,949.25
4. Step 4: Simplify right side
   861,723.41x = 593,186,041,827.38
5. Step 5: Solve for x
   x = 593,186,041,827.38/861,723.41
6. Step 6: Final answer
   x = 688,371.74