Finding the Fourth Proportional to 2,760.84, 4,139.37 and 1,443.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.84 : 4,139.37 = 1,443.78 : x
2. Step 2: Convert to fraction form
   2,760.84/4,139.37 = 1,443.78/x
3. Step 3: Cross multiply
   2,760.84x = 4,139.37 × 1,443.78
4. Step 4: Simplify right side
   2,760.84x = 5,976,339.62
5. Step 5: Solve for x
   x = 5,976,339.62/2,760.84
6. Step 6: Final answer
   x = 2,164.68