Finding the Fourth Proportional to 2,610.72, 3,919.42 and 2,242.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.72 : 3,919.42 = 2,242.88 : x
2. Step 2: Convert to fraction form
   2,610.72/3,919.42 = 2,242.88/x
3. Step 3: Cross multiply
   2,610.72x = 3,919.42 × 2,242.88
4. Step 4: Simplify right side
   2,610.72x = 8,790,774.02
5. Step 5: Solve for x
   x = 8,790,774.02/2,610.72
6. Step 6: Final answer
   x = 3,367.18