Finding the Fourth Proportional to 2,066.31, 2,851.02 and 1,169.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.31 : 2,851.02 = 1,169.91 : x
2. Step 2: Convert to fraction form
   2,066.31/2,851.02 = 1,169.91/x
3. Step 3: Cross multiply
   2,066.31x = 2,851.02 × 1,169.91
4. Step 4: Simplify right side
   2,066.31x = 3,335,436.81
5. Step 5: Solve for x
   x = 3,335,436.81/2,066.31
6. Step 6: Final answer
   x = 1,614.20