Finding the Fourth Proportional to 2,987,429.52, 4,481,146.98 and 1,280,465.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,987,429.52 : 4,481,146.98 = 1,280,465.10 : x
2. Step 2: Convert to fraction form
   2,987,429.52/4,481,146.98 = 1,280,465.10/x
3. Step 3: Cross multiply
   2,987,429.52x = 4,481,146.98 × 1,280,465.10
4. Step 4: Simplify right side
   2,987,429.52x = 5,737,952,315,860.40
5. Step 5: Solve for x
   x = 5,737,952,315,860.40/2,987,429.52
6. Step 6: Final answer
   x = 1,920,698.81