Finding the Fourth Proportional to 2,066.38, 2,851.35 and 1,227.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.38 : 2,851.35 = 1,227.10 : x
2. Step 2: Convert to fraction form
   2,066.38/2,851.35 = 1,227.10/x
3. Step 3: Cross multiply
   2,066.38x = 2,851.35 × 1,227.10
4. Step 4: Simplify right side
   2,066.38x = 3,498,891.59
5. Step 5: Solve for x
   x = 3,498,891.59/2,066.38
6. Step 6: Final answer
   x = 1,693.25