Finding the Fourth Proportional to 1,407,535.16, 2,109,610.24 and 648,332.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,535.16 : 2,109,610.24 = 648,332.72 : x
2. Step 2: Convert to fraction form
   1,407,535.16/2,109,610.24 = 648,332.72/x
3. Step 3: Cross multiply
   1,407,535.16x = 2,109,610.24 × 648,332.72
4. Step 4: Simplify right side
   1,407,535.16x = 1,367,729,345,039.05
5. Step 5: Solve for x
   x = 1,367,729,345,039.05/1,407,535.16
6. Step 6: Final answer
   x = 971,719.49