Finding the Fourth Proportional to 2,007.74, 2,770.68 and 1,123.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.74 : 2,770.68 = 1,123.47 : x
2. Step 2: Convert to fraction form
   2,007.74/2,770.68 = 1,123.47/x
3. Step 3: Cross multiply
   2,007.74x = 2,770.68 × 1,123.47
4. Step 4: Simplify right side
   2,007.74x = 3,112,775.86
5. Step 5: Solve for x
   x = 3,112,775.86/2,007.74
6. Step 6: Final answer
   x = 1,550.39