Finding the Fourth Proportional to 2,740.72, 4,103.76 and 1,439.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.72 : 4,103.76 = 1,439.44 : x
2. Step 2: Convert to fraction form
   2,740.72/4,103.76 = 1,439.44/x
3. Step 3: Cross multiply
   2,740.72x = 4,103.76 × 1,439.44
4. Step 4: Simplify right side
   2,740.72x = 5,907,116.29
5. Step 5: Solve for x
   x = 5,907,116.29/2,740.72
6. Step 6: Final answer
   x = 2,155.32