Finding the Fourth Proportional to 3,891.41, 5,833.59 and 2,642.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,891.41 : 5,833.59 = 2,642.42 : x
2. Step 2: Convert to fraction form
   3,891.41/5,833.59 = 2,642.42/x
3. Step 3: Cross multiply
   3,891.41x = 5,833.59 × 2,642.42
4. Step 4: Simplify right side
   3,891.41x = 15,414,765.72
5. Step 5: Solve for x
   x = 15,414,765.72/3,891.41
6. Step 6: Final answer
   x = 3,961.23