Finding the Fourth Proportional to 2,680.82, 4,022.88 and 1,294.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680.82 : 4,022.88 = 1,294.29 : x
2. Step 2: Convert to fraction form
   2,680.82/4,022.88 = 1,294.29/x
3. Step 3: Cross multiply
   2,680.82x = 4,022.88 × 1,294.29
4. Step 4: Simplify right side
   2,680.82x = 5,206,773.36
5. Step 5: Solve for x
   x = 5,206,773.36/2,680.82
6. Step 6: Final answer
   x = 1,942.24