Finding the Fourth Proportional to 1,499,320.55, 2,248,978.10 and 488,441.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,320.55 : 2,248,978.10 = 488,441.31 : x
2. Step 2: Convert to fraction form
   1,499,320.55/2,248,978.10 = 488,441.31/x
3. Step 3: Cross multiply
   1,499,320.55x = 2,248,978.10 × 488,441.31
4. Step 4: Simplify right side
   1,499,320.55x = 1,098,493,806,883.10
5. Step 5: Solve for x
   x = 1,098,493,806,883.10/1,499,320.55
6. Step 6: Final answer
   x = 732,661.08