Finding the Fourth Proportional to 2,116,229.83, 2,921,288.91 and 1,428,831.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,229.83 : 2,921,288.91 = 1,428,831.80 : x
2. Step 2: Convert to fraction form
   2,116,229.83/2,921,288.91 = 1,428,831.80/x
3. Step 3: Cross multiply
   2,116,229.83x = 2,921,288.91 × 1,428,831.80
4. Step 4: Simplify right side
   2,116,229.83x = 4,174,030,490,622.79
5. Step 5: Solve for x
   x = 4,174,030,490,622.79/2,116,229.83
6. Step 6: Final answer
   x = 1,972,389.97