Finding the Fourth Proportional to 2,007.56, 2,770.49 and 1,123.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.56 : 2,770.49 = 1,123.51 : x
2. Step 2: Convert to fraction form
   2,007.56/2,770.49 = 1,123.51/x
3. Step 3: Cross multiply
   2,007.56x = 2,770.49 × 1,123.51
4. Step 4: Simplify right side
   2,007.56x = 3,112,673.22
5. Step 5: Solve for x
   x = 3,112,673.22/2,007.56
6. Step 6: Final answer
   x = 1,550.48