Finding the Fourth Proportional to 2,007.28, 2,770.10 and 1,123.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.28 : 2,770.10 = 1,123.27 : x
2. Step 2: Convert to fraction form
   2,007.28/2,770.10 = 1,123.27/x
3. Step 3: Cross multiply
   2,007.28x = 2,770.10 × 1,123.27
4. Step 4: Simplify right side
   2,007.28x = 3,111,561.90
5. Step 5: Solve for x
   x = 3,111,561.90/2,007.28
6. Step 6: Final answer
   x = 1,550.14