Finding the Fourth Proportional to 1,181,006.52, 1,629,840.88 and 664,793.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181,006.52 : 1,629,840.88 = 664,793.72 : x
2. Step 2: Convert to fraction form
   1,181,006.52/1,629,840.88 = 664,793.72/x
3. Step 3: Cross multiply
   1,181,006.52x = 1,629,840.88 × 664,793.72
4. Step 4: Simplify right side
   1,181,006.52x = 1,083,507,981,623.27
5. Step 5: Solve for x
   x = 1,083,507,981,623.27/1,181,006.52
6. Step 6: Final answer
   x = 917,444.54