Finding the Fourth Proportional to 2,342.67, 3,232.79 and 1,280.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.67 : 3,232.79 = 1,280.47 : x
2. Step 2: Convert to fraction form
   2,342.67/3,232.79 = 1,280.47/x
3. Step 3: Cross multiply
   2,342.67x = 3,232.79 × 1,280.47
4. Step 4: Simplify right side
   2,342.67x = 4,139,490.61
5. Step 5: Solve for x
   x = 4,139,490.61/2,342.67
6. Step 6: Final answer
   x = 1,767.00