Finding the Fourth Proportional to 2,007.39, 2,770.32 and 1,123.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.39 : 2,770.32 = 1,123.17 : x
2. Step 2: Convert to fraction form
   2,007.39/2,770.32 = 1,123.17/x
3. Step 3: Cross multiply
   2,007.39x = 2,770.32 × 1,123.17
4. Step 4: Simplify right side
   2,007.39x = 3,111,539.57
5. Step 5: Solve for x
   x = 3,111,539.57/2,007.39
6. Step 6: Final answer
   x = 1,550.04