Finding the Fourth Proportional to 675,748.80, 932,384.52 and 403,776

Step by Step Solution

1. Step 1: Write the proportion equation
   675,748.80 : 932,384.52 = 403,776 : x
2. Step 2: Convert to fraction form
   675,748.80/932,384.52 = 403,776/x
3. Step 3: Cross multiply
   675,748.80x = 932,384.52 × 403,776
4. Step 4: Simplify right side
   675,748.80x = 376,474,491,947.52
5. Step 5: Solve for x
   x = 376,474,491,947.52/675,748.80
6. Step 6: Final answer
   x = 557,121.95