Finding the Fourth Proportional to 2,007.99, 2,771.07 and 1,123.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.99 : 2,771.07 = 1,123.79 : x
2. Step 2: Convert to fraction form
   2,007.99/2,771.07 = 1,123.79/x
3. Step 3: Cross multiply
   2,007.99x = 2,771.07 × 1,123.79
4. Step 4: Simplify right side
   2,007.99x = 3,114,103.72
5. Step 5: Solve for x
   x = 3,114,103.72/2,007.99
6. Step 6: Final answer
   x = 1,550.85