Finding the Fourth Proportional to 2,766.15, 4,146.03 and 1,380.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.15 : 4,146.03 = 1,380.42 : x
2. Step 2: Convert to fraction form
   2,766.15/4,146.03 = 1,380.42/x
3. Step 3: Cross multiply
   2,766.15x = 4,146.03 × 1,380.42
4. Step 4: Simplify right side
   2,766.15x = 5,723,262.73
5. Step 5: Solve for x
   x = 5,723,262.73/2,766.15
6. Step 6: Final answer
   x = 2,069.04