Finding the Fourth Proportional to 864,196.43, 1,192,412.98 and 496,602.56

Step by Step Solution

1. Step 1: Write the proportion equation
   864,196.43 : 1,192,412.98 = 496,602.56 : x
2. Step 2: Convert to fraction form
   864,196.43/1,192,412.98 = 496,602.56/x
3. Step 3: Cross multiply
   864,196.43x = 1,192,412.98 × 496,602.56
4. Step 4: Simplify right side
   864,196.43x = 592,155,342,047.01
5. Step 5: Solve for x
   x = 592,155,342,047.01/864,196.43
6. Step 6: Final answer
   x = 685,209.20