Finding the Fourth Proportional to 2,328.52, 3,213.46 and 1,280.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.52 : 3,213.46 = 1,280.62 : x
2. Step 2: Convert to fraction form
   2,328.52/3,213.46 = 1,280.62/x
3. Step 3: Cross multiply
   2,328.52x = 3,213.46 × 1,280.62
4. Step 4: Simplify right side
   2,328.52x = 4,115,221.15
5. Step 5: Solve for x
   x = 4,115,221.15/2,328.52
6. Step 6: Final answer
   x = 1,767.31