Finding the Fourth Proportional to 5,440.72, 7,508.20 and 2,956.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,440.72 : 7,508.20 = 2,956.72 : x
2. Step 2: Convert to fraction form
   5,440.72/7,508.20 = 2,956.72/x
3. Step 3: Cross multiply
   5,440.72x = 7,508.20 × 2,956.72
4. Step 4: Simplify right side
   5,440.72x = 22,199,645.10
5. Step 5: Solve for x
   x = 22,199,645.10/5,440.72
6. Step 6: Final answer
   x = 4,080.28