Finding the Fourth Proportional to 2,416.89, 3,625.37 and 685.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,416.89 : 3,625.37 = 685.52 : x
2. Step 2: Convert to fraction form
   2,416.89/3,625.37 = 685.52/x
3. Step 3: Cross multiply
   2,416.89x = 3,625.37 × 685.52
4. Step 4: Simplify right side
   2,416.89x = 2,485,242.09
5. Step 5: Solve for x
   x = 2,485,242.09/2,416.89
6. Step 6: Final answer
   x = 1,028.28