Finding the Fourth Proportional to 964,978.80, 1,447,471.92 and 403,619.52

Step by Step Solution

1. Step 1: Write the proportion equation
   964,978.80 : 1,447,471.92 = 403,619.52 : x
2. Step 2: Convert to fraction form
   964,978.80/1,447,471.92 = 403,619.52/x
3. Step 3: Cross multiply
   964,978.80x = 1,447,471.92 × 403,619.52
4. Step 4: Simplify right side
   964,978.80x = 584,227,921,563.88
5. Step 5: Solve for x
   x = 584,227,921,563.88/964,978.80
6. Step 6: Final answer
   x = 605,430.84