Finding the Fourth Proportional to 2,411.84, 3,617.67 and 680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.84 : 3,617.67 = 680.42 : x
2. Step 2: Convert to fraction form
   2,411.84/3,617.67 = 680.42/x
3. Step 3: Cross multiply
   2,411.84x = 3,617.67 × 680.42
4. Step 4: Simplify right side
   2,411.84x = 2,461,535.02
5. Step 5: Solve for x
   x = 2,461,535.02/2,411.84
6. Step 6: Final answer
   x = 1,020.60