Finding the Fourth Proportional to 646,650.72, 892,354.86 and 360,155.34

Step by Step Solution

1. Step 1: Write the proportion equation
   646,650.72 : 892,354.86 = 360,155.34 : x
2. Step 2: Convert to fraction form
   646,650.72/892,354.86 = 360,155.34/x
3. Step 3: Cross multiply
   646,650.72x = 892,354.86 × 360,155.34
4. Step 4: Simplify right side
   646,650.72x = 321,386,368,003.95
5. Step 5: Solve for x
   x = 321,386,368,003.95/646,650.72
6. Step 6: Final answer
   x = 497,001.48