Finding the Fourth Proportional to 2,662.12, 3,987.42 and 2,581.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.12 : 3,987.42 = 2,581.48 : x
2. Step 2: Convert to fraction form
   2,662.12/3,987.42 = 2,581.48/x
3. Step 3: Cross multiply
   2,662.12x = 3,987.42 × 2,581.48
4. Step 4: Simplify right side
   2,662.12x = 10,293,444.98
5. Step 5: Solve for x
   x = 10,293,444.98/2,662.12
6. Step 6: Final answer
   x = 3,866.63