Finding the Fourth Proportional to 3,105.79, 4,660.22 and 2,287.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.79 : 4,660.22 = 2,287.69 : x
2. Step 2: Convert to fraction form
   3,105.79/4,660.22 = 2,287.69/x
3. Step 3: Cross multiply
   3,105.79x = 4,660.22 × 2,287.69
4. Step 4: Simplify right side
   3,105.79x = 10,661,103.95
5. Step 5: Solve for x
   x = 10,661,103.95/3,105.79
6. Step 6: Final answer
   x = 3,432.66