Finding the Fourth Proportional to 2,664.52, 4,016.72 and 2,486.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.52 : 4,016.72 = 2,486.12 : x
2. Step 2: Convert to fraction form
   2,664.52/4,016.72 = 2,486.12/x
3. Step 3: Cross multiply
   2,664.52x = 4,016.72 × 2,486.12
4. Step 4: Simplify right side
   2,664.52x = 9,986,047.93
5. Step 5: Solve for x
   x = 9,986,047.93/2,664.52
6. Step 6: Final answer
   x = 3,747.78