Finding the Fourth Proportional to 3,105.50, 4,285.59 and 1,708.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.50 : 4,285.59 = 1,708.25 : x
2. Step 2: Convert to fraction form
   3,105.50/4,285.59 = 1,708.25/x
3. Step 3: Cross multiply
   3,105.50x = 4,285.59 × 1,708.25
4. Step 4: Simplify right side
   3,105.50x = 7,320,859.12
5. Step 5: Solve for x
   x = 7,320,859.12/3,105.50
6. Step 6: Final answer
   x = 2,357.39