Finding the Fourth Proportional to 3,096.72, 4,271.33 and 1,917.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,096.72 : 4,271.33 = 1,917.09 : x
2. Step 2: Convert to fraction form
   3,096.72/4,271.33 = 1,917.09/x
3. Step 3: Cross multiply
   3,096.72x = 4,271.33 × 1,917.09
4. Step 4: Simplify right side
   3,096.72x = 8,188,514.44
5. Step 5: Solve for x
   x = 8,188,514.44/3,096.72
6. Step 6: Final answer
   x = 2,644.25