Finding the Fourth Proportional to 2,105,452.47, 3,157,849.24 and 685,498.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,452.47 : 3,157,849.24 = 685,498.98 : x
2. Step 2: Convert to fraction form
   2,105,452.47/3,157,849.24 = 685,498.98/x
3. Step 3: Cross multiply
   2,105,452.47x = 3,157,849.24 × 685,498.98
4. Step 4: Simplify right side
   2,105,452.47x = 2,164,702,433,013.78
5. Step 5: Solve for x
   x = 2,164,702,433,013.78/2,105,452.47
6. Step 6: Final answer
   x = 1,028,141.20