Finding the Fourth Proportional to 2,742.85, 4,113.46 and 1,443.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,742.85 : 4,113.46 = 1,443.61 : x
2. Step 2: Convert to fraction form
   2,742.85/4,113.46 = 1,443.61/x
3. Step 3: Cross multiply
   2,742.85x = 4,113.46 × 1,443.61
4. Step 4: Simplify right side
   2,742.85x = 5,938,231.99
5. Step 5: Solve for x
   x = 5,938,231.99/2,742.85
6. Step 6: Final answer
   x = 2,164.99