Finding the Fourth Proportional to 2,640,938.69, 3,644,510.55 and 1,553,256.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640,938.69 : 3,644,510.55 = 1,553,256.11 : x
2. Step 2: Convert to fraction form
   2,640,938.69/3,644,510.55 = 1,553,256.11/x
3. Step 3: Cross multiply
   2,640,938.69x = 3,644,510.55 × 1,553,256.11
4. Step 4: Simplify right side
   2,640,938.69x = 5,660,858,279,746.96
5. Step 5: Solve for x
   x = 5,660,858,279,746.96/2,640,938.69
6. Step 6: Final answer
   x = 2,143,502.35