Finding the Fourth Proportional to 662,784.02, 914,641.98 and 360,978.02

Step by Step Solution

1. Step 1: Write the proportion equation
   662,784.02 : 914,641.98 = 360,978.02 : x
2. Step 2: Convert to fraction form
   662,784.02/914,641.98 = 360,978.02/x
3. Step 3: Cross multiply
   662,784.02x = 914,641.98 × 360,978.02
4. Step 4: Simplify right side
   662,784.02x = 330,165,650,949.28
5. Step 5: Solve for x
   x = 330,165,650,949.28/662,784.02
6. Step 6: Final answer
   x = 498,149.69