Finding the Fourth Proportional to 2,411.94, 3,617.40 and 680.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.94 : 3,617.40 = 680.16 : x
2. Step 2: Convert to fraction form
   2,411.94/3,617.40 = 680.16/x
3. Step 3: Cross multiply
   2,411.94x = 3,617.40 × 680.16
4. Step 4: Simplify right side
   2,411.94x = 2,460,410.78
5. Step 5: Solve for x
   x = 2,460,410.78/2,411.94
6. Step 6: Final answer
   x = 1,020.10