Finding the Fourth Proportional to 2,328.48, 3,213.29 and 1,280.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.48 : 3,213.29 = 1,280.52 : x
2. Step 2: Convert to fraction form
   2,328.48/3,213.29 = 1,280.52/x
3. Step 3: Cross multiply
   2,328.48x = 3,213.29 × 1,280.52
4. Step 4: Simplify right side
   2,328.48x = 4,114,685.31
5. Step 5: Solve for x
   x = 4,114,685.31/2,328.48
6. Step 6: Final answer
   x = 1,767.11