Finding the Fourth Proportional to 2,439,990.72, 3,658,949.20 and 999,682.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439,990.72 : 3,658,949.20 = 999,682.56 : x
2. Step 2: Convert to fraction form
   2,439,990.72/3,658,949.20 = 999,682.56/x
3. Step 3: Cross multiply
   2,439,990.72x = 3,658,949.20 × 999,682.56
4. Step 4: Simplify right side
   2,439,990.72x = 3,657,787,703,165.95
5. Step 5: Solve for x
   x = 3,657,787,703,165.95/2,439,990.72
6. Step 6: Final answer
   x = 1,499,099.02