Finding the Fourth Proportional to 2,328, 3,212.73 and 1,280.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328 : 3,212.73 = 1,280.04 : x
2. Step 2: Convert to fraction form
   2,328/3,212.73 = 1,280.04/x
3. Step 3: Cross multiply
   2,328x = 3,212.73 × 1,280.04
4. Step 4: Simplify right side
   2,328x = 4,112,422.91
5. Step 5: Solve for x
   x = 4,112,422.91/2,328
6. Step 6: Final answer
   x = 1,766.50