Finding the Fourth Proportional to 2,066.06, 2,851.32 and 1,280.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.06 : 2,851.32 = 1,280.26 : x
2. Step 2: Convert to fraction form
   2,066.06/2,851.32 = 1,280.26/x
3. Step 3: Cross multiply
   2,066.06x = 2,851.32 × 1,280.26
4. Step 4: Simplify right side
   2,066.06x = 3,650,432.11
5. Step 5: Solve for x
   x = 3,650,432.11/2,066.06
6. Step 6: Final answer
   x = 1,766.85