Finding the Fourth Proportional to 2,124,274.72, 3,186,409.18 and 986,414.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124,274.72 : 3,186,409.18 = 986,414.71 : x
2. Step 2: Convert to fraction form
   2,124,274.72/3,186,409.18 = 986,414.71/x
3. Step 3: Cross multiply
   2,124,274.72x = 3,186,409.18 × 986,414.71
4. Step 4: Simplify right side
   2,124,274.72x = 3,143,120,887,231.04
5. Step 5: Solve for x
   x = 3,143,120,887,231.04/2,124,274.72
6. Step 6: Final answer
   x = 1,479,620.72