Finding the Fourth Proportional to 2,066.10, 2,851.31 and 1,227.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.10 : 2,851.31 = 1,227.27 : x
2. Step 2: Convert to fraction form
   2,066.10/2,851.31 = 1,227.27/x
3. Step 3: Cross multiply
   2,066.10x = 2,851.31 × 1,227.27
4. Step 4: Simplify right side
   2,066.10x = 3,499,321.09
5. Step 5: Solve for x
   x = 3,499,321.09/2,066.10
6. Step 6: Final answer
   x = 1,693.68