Finding the Fourth Proportional to 2,766.73, 4,151.20 and 1,123.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.73 : 4,151.20 = 1,123.40 : x
2. Step 2: Convert to fraction form
   2,766.73/4,151.20 = 1,123.40/x
3. Step 3: Cross multiply
   2,766.73x = 4,151.20 × 1,123.40
4. Step 4: Simplify right side
   2,766.73x = 4,663,459.00
5. Step 5: Solve for x
   x = 4,663,459.00/2,766.73
6. Step 6: Final answer
   x = 1,685.55