Finding the Fourth Proportional to 475,196.88, 714,818.06 and 430,754.15

Step by Step Solution

1. Step 1: Write the proportion equation
   475,196.88 : 714,818.06 = 430,754.15 : x
2. Step 2: Convert to fraction form
   475,196.88/714,818.06 = 430,754.15/x
3. Step 3: Cross multiply
   475,196.88x = 714,818.06 × 430,754.15
4. Step 4: Simplify right side
   475,196.88x = 307,910,849,511.54
5. Step 5: Solve for x
   x = 307,910,849,511.54/475,196.88
6. Step 6: Final answer
   x = 647,964.80