Finding the Fourth Proportional to 861,904.32, 1,189,463.04 and 479,906.88

Step by Step Solution

1. Step 1: Write the proportion equation
   861,904.32 : 1,189,463.04 = 479,906.88 : x
2. Step 2: Convert to fraction form
   861,904.32/1,189,463.04 = 479,906.88/x
3. Step 3: Cross multiply
   861,904.32x = 1,189,463.04 × 479,906.88
4. Step 4: Simplify right side
   861,904.32x = 570,831,496,401.72
5. Step 5: Solve for x
   x = 570,831,496,401.72/861,904.32
6. Step 6: Final answer
   x = 662,291.03