Finding the Fourth Proportional to 2,411.39, 3,617.22 and 680.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.39 : 3,617.22 = 680.15 : x
2. Step 2: Convert to fraction form
   2,411.39/3,617.22 = 680.15/x
3. Step 3: Cross multiply
   2,411.39x = 3,617.22 × 680.15
4. Step 4: Simplify right side
   2,411.39x = 2,460,252.18
5. Step 5: Solve for x
   x = 2,460,252.18/2,411.39
6. Step 6: Final answer
   x = 1,020.26