Finding the Fourth Proportional to 1,152,945.89, 1,728,484.12 and 479,531.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,945.89 : 1,728,484.12 = 479,531.33 : x
2. Step 2: Convert to fraction form
   1,152,945.89/1,728,484.12 = 479,531.33/x
3. Step 3: Cross multiply
   1,152,945.89x = 1,728,484.12 × 479,531.33
4. Step 4: Simplify right side
   1,152,945.89x = 828,862,288,947.48
5. Step 5: Solve for x
   x = 828,862,288,947.48/1,152,945.89
6. Step 6: Final answer
   x = 718,908.23