Finding the Fourth Proportional to 2,766.69, 4,150.13 and 1,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.69 : 4,150.13 = 1,123.20 : x
2. Step 2: Convert to fraction form
   2,766.69/4,150.13 = 1,123.20/x
3. Step 3: Cross multiply
   2,766.69x = 4,150.13 × 1,123.20
4. Step 4: Simplify right side
   2,766.69x = 4,661,420.40
5. Step 5: Solve for x
   x = 4,661,420.40/2,766.69
6. Step 6: Final answer
   x = 1,684.84