Finding the Fourth Proportional to 3,867.33, 5,829.56 and 3,641.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.33 : 5,829.56 = 3,641.55 : x
2. Step 2: Convert to fraction form
   3,867.33/5,829.56 = 3,641.55/x
3. Step 3: Cross multiply
   3,867.33x = 5,829.56 × 3,641.55
4. Step 4: Simplify right side
   3,867.33x = 21,228,634.22
5. Step 5: Solve for x
   x = 21,228,634.22/3,867.33
6. Step 6: Final answer
   x = 5,489.22