Finding the Fourth Proportional to 2,066.57, 2,851.89 and 1,122.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.57 : 2,851.89 = 1,122.38 : x
2. Step 2: Convert to fraction form
   2,066.57/2,851.89 = 1,122.38/x
3. Step 3: Cross multiply
   2,066.57x = 2,851.89 × 1,122.38
4. Step 4: Simplify right side
   2,066.57x = 3,200,904.30
5. Step 5: Solve for x
   x = 3,200,904.30/2,066.57
6. Step 6: Final answer
   x = 1,548.90