Finding the Fourth Proportional to 663,879.83, 995,819.00 and 264,800.88

Step by Step Solution

1. Step 1: Write the proportion equation
   663,879.83 : 995,819.00 = 264,800.88 : x
2. Step 2: Convert to fraction form
   663,879.83/995,819.00 = 264,800.88/x
3. Step 3: Cross multiply
   663,879.83x = 995,819.00 × 264,800.88
4. Step 4: Simplify right side
   663,879.83x = 263,693,746,196.72
5. Step 5: Solve for x
   x = 263,693,746,196.72/663,879.83
6. Step 6: Final answer
   x = 397,201.02