Finding the Fourth Proportional to 2,614.64, 3,924.12 and 1,076.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.64 : 3,924.12 = 1,076.72 : x
2. Step 2: Convert to fraction form
   2,614.64/3,924.12 = 1,076.72/x
3. Step 3: Cross multiply
   2,614.64x = 3,924.12 × 1,076.72
4. Step 4: Simplify right side
   2,614.64x = 4,225,178.49
5. Step 5: Solve for x
   x = 4,225,178.49/2,614.64
6. Step 6: Final answer
   x = 1,615.97