Finding the Fourth Proportional to 3,086.78, 4,261.62 and 2,422.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.78 : 4,261.62 = 2,422.04 : x
2. Step 2: Convert to fraction form
   3,086.78/4,261.62 = 2,422.04/x
3. Step 3: Cross multiply
   3,086.78x = 4,261.62 × 2,422.04
4. Step 4: Simplify right side
   3,086.78x = 10,321,814.10
5. Step 5: Solve for x
   x = 10,321,814.10/3,086.78
6. Step 6: Final answer
   x = 3,343.88