Finding the Fourth Proportional to 2,742.48, 4,112.60 and 1,443.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,742.48 : 4,112.60 = 1,443.60 : x
2. Step 2: Convert to fraction form
   2,742.48/4,112.60 = 1,443.60/x
3. Step 3: Cross multiply
   2,742.48x = 4,112.60 × 1,443.60
4. Step 4: Simplify right side
   2,742.48x = 5,936,949.36
5. Step 5: Solve for x
   x = 5,936,949.36/2,742.48
6. Step 6: Final answer
   x = 2,164.81