Finding the Fourth Proportional to 2,766.86, 4,150.28 and 1,123.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.86 : 4,150.28 = 1,123.39 : x
2. Step 2: Convert to fraction form
   2,766.86/4,150.28 = 1,123.39/x
3. Step 3: Cross multiply
   2,766.86x = 4,150.28 × 1,123.39
4. Step 4: Simplify right side
   2,766.86x = 4,662,389.21
5. Step 5: Solve for x
   x = 4,662,389.21/2,766.86
6. Step 6: Final answer
   x = 1,685.08