Finding the Fourth Proportional to 3,109.10, 4,662.98 and 1,028.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.10 : 4,662.98 = 1,028.61 : x
2. Step 2: Convert to fraction form
   3,109.10/4,662.98 = 1,028.61/x
3. Step 3: Cross multiply
   3,109.10x = 4,662.98 × 1,028.61
4. Step 4: Simplify right side
   3,109.10x = 4,796,387.86
5. Step 5: Solve for x
   x = 4,796,387.86/3,109.10
6. Step 6: Final answer
   x = 1,542.69