Finding the Fourth Proportional to 2,342.91, 3,233.12 and 1,280.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.91 : 3,233.12 = 1,280.66 : x
2. Step 2: Convert to fraction form
   2,342.91/3,233.12 = 1,280.66/x
3. Step 3: Cross multiply
   2,342.91x = 3,233.12 × 1,280.66
4. Step 4: Simplify right side
   2,342.91x = 4,140,504.89
5. Step 5: Solve for x
   x = 4,140,504.89/2,342.91
6. Step 6: Final answer
   x = 1,767.25