Finding the Fourth Proportional to 2,476,687.92, 3,417,978.43 and 1,389,023.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,476,687.92 : 3,417,978.43 = 1,389,023.79 : x
2. Step 2: Convert to fraction form
   2,476,687.92/3,417,978.43 = 1,389,023.79/x
3. Step 3: Cross multiply
   2,476,687.92x = 3,417,978.43 × 1,389,023.79
4. Step 4: Simplify right side
   2,476,687.92x = 4,747,653,355,261.69
5. Step 5: Solve for x
   x = 4,747,653,355,261.69/2,476,687.92
6. Step 6: Final answer
   x = 1,916,936.45