Finding the Fourth Proportional to 2,617.50, 3,612.39 and 1,685.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.50 : 3,612.39 = 1,685.82 : x
2. Step 2: Convert to fraction form
   2,617.50/3,612.39 = 1,685.82/x
3. Step 3: Cross multiply
   2,617.50x = 3,612.39 × 1,685.82
4. Step 4: Simplify right side
   2,617.50x = 6,089,839.31
5. Step 5: Solve for x
   x = 6,089,839.31/2,617.50
6. Step 6: Final answer
   x = 2,326.59