Finding the Fourth Proportional to 2,640,963.69, 3,644,544.78 and 1,553,281.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640,963.69 : 3,644,544.78 = 1,553,281.11 : x
2. Step 2: Convert to fraction form
   2,640,963.69/3,644,544.78 = 1,553,281.11/x
3. Step 3: Cross multiply
   2,640,963.69x = 3,644,544.78 × 1,553,281.11
4. Step 4: Simplify right side
   2,640,963.69x = 5,661,002,561,323.11
5. Step 5: Solve for x
   x = 5,661,002,561,323.11/2,640,963.69
6. Step 6: Final answer
   x = 2,143,536.69