Finding the Fourth Proportional to 2,649,143.52, 3,974,489.52 and 851,986.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649,143.52 : 3,974,489.52 = 851,986.72 : x
2. Step 2: Convert to fraction form
   2,649,143.52/3,974,489.52 = 851,986.72/x
3. Step 3: Cross multiply
   2,649,143.52x = 3,974,489.52 × 851,986.72
4. Step 4: Simplify right side
   2,649,143.52x = 3,386,212,289,819.17
5. Step 5: Solve for x
   x = 3,386,212,289,819.17/2,649,143.52
6. Step 6: Final answer
   x = 1,278,229.08