Finding the Fourth Proportional to 3,171,792.78, 4,377,078.14 and 1,721,488.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,171,792.78 : 4,377,078.14 = 1,721,488.06 : x
2. Step 2: Convert to fraction form
   3,171,792.78/4,377,078.14 = 1,721,488.06/x
3. Step 3: Cross multiply
   3,171,792.78x = 4,377,078.14 × 1,721,488.06
4. Step 4: Simplify right side
   3,171,792.78x = 7,535,087,755,697.01
5. Step 5: Solve for x
   x = 7,535,087,755,697.01/3,171,792.78
6. Step 6: Final answer
   x = 2,375,655.75