Finding the Fourth Proportional to 2,128,801.86, 3,193,711.20 and 708,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,801.86 : 3,193,711.20 = 708,870.24 : x
2. Step 2: Convert to fraction form
   2,128,801.86/3,193,711.20 = 708,870.24/x
3. Step 3: Cross multiply
   2,128,801.86x = 3,193,711.20 × 708,870.24
4. Step 4: Simplify right side
   2,128,801.86x = 2,263,926,824,834.69
5. Step 5: Solve for x
   x = 2,263,926,824,834.69/2,128,801.86
6. Step 6: Final answer
   x = 1,063,474.66