Finding the Fourth Proportional to 1,648,139.56, 2,472,186.27 and 999,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,139.56 : 2,472,186.27 = 999,870.24 : x
2. Step 2: Convert to fraction form
   1,648,139.56/2,472,186.27 = 999,870.24/x
3. Step 3: Cross multiply
   1,648,139.56x = 2,472,186.27 × 999,870.24
4. Step 4: Simplify right side
   1,648,139.56x = 2,471,865,479,109.61
5. Step 5: Solve for x
   x = 2,471,865,479,109.61/1,648,139.56
6. Step 6: Final answer
   x = 1,499,791.36