Finding the Fourth Proportional to 2,152,337.24, 3,228,672.72 and 872,335.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152,337.24 : 3,228,672.72 = 872,335.55 : x
2. Step 2: Convert to fraction form
   2,152,337.24/3,228,672.72 = 872,335.55/x
3. Step 3: Cross multiply
   2,152,337.24x = 3,228,672.72 × 872,335.55
4. Step 4: Simplify right side
   2,152,337.24x = 2,816,485,992,971.20
5. Step 5: Solve for x
   x = 2,816,485,992,971.20/2,152,337.24
6. Step 6: Final answer
   x = 1,308,570.95