Finding the Fourth Proportional to 1,280.16, 1,766.61 and 1,093.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280.16 : 1,766.61 = 1,093.41 : x
2. Step 2: Convert to fraction form
   1,280.16/1,766.61 = 1,093.41/x
3. Step 3: Cross multiply
   1,280.16x = 1,766.61 × 1,093.41
4. Step 4: Simplify right side
   1,280.16x = 1,931,629.04
5. Step 5: Solve for x
   x = 1,931,629.04/1,280.16
6. Step 6: Final answer
   x = 1,508.90