Finding the Fourth Proportional to 2,768.38, 4,148.98 and 1,123

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.38 : 4,148.98 = 1,123 : x
2. Step 2: Convert to fraction form
   2,768.38/4,148.98 = 1,123/x
3. Step 3: Cross multiply
   2,768.38x = 4,148.98 × 1,123
4. Step 4: Simplify right side
   2,768.38x = 4,659,304.54
5. Step 5: Solve for x
   x = 4,659,304.54/2,768.38
6. Step 6: Final answer
   x = 1,683.04