Finding the Fourth Proportional to 2,066.42, 2,851.46 and 1,170.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.42 : 2,851.46 = 1,170.20 : x
2. Step 2: Convert to fraction form
   2,066.42/2,851.46 = 1,170.20/x
3. Step 3: Cross multiply
   2,066.42x = 2,851.46 × 1,170.20
4. Step 4: Simplify right side
   2,066.42x = 3,336,758.38
5. Step 5: Solve for x
   x = 3,336,758.38/2,066.42
6. Step 6: Final answer
   x = 1,614.76