Finding the Fourth Proportional to 2,267,321.90, 3,128,760.68 and 1,248,726.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267,321.90 : 3,128,760.68 = 1,248,726.65 : x
2. Step 2: Convert to fraction form
   2,267,321.90/3,128,760.68 = 1,248,726.65/x
3. Step 3: Cross multiply
   2,267,321.90x = 3,128,760.68 × 1,248,726.65
4. Step 4: Simplify right side
   2,267,321.90x = 3,906,966,820,700.69
5. Step 5: Solve for x
   x = 3,906,966,820,700.69/2,267,321.90
6. Step 6: Final answer
   x = 1,723,163.72