Finding the Fourth Proportional to 2,328.89, 3,214.04 and 1,280.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.89 : 3,214.04 = 1,280.95 : x
2. Step 2: Convert to fraction form
   2,328.89/3,214.04 = 1,280.95/x
3. Step 3: Cross multiply
   2,328.89x = 3,214.04 × 1,280.95
4. Step 4: Simplify right side
   2,328.89x = 4,117,010.10
5. Step 5: Solve for x
   x = 4,117,010.10/2,328.89
6. Step 6: Final answer
   x = 1,767.80