Finding the Fourth Proportional to 3,986.82, 5,973.35 and 3,581.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.82 : 5,973.35 = 3,581.01 : x
2. Step 2: Convert to fraction form
   3,986.82/5,973.35 = 3,581.01/x
3. Step 3: Cross multiply
   3,986.82x = 5,973.35 × 3,581.01
4. Step 4: Simplify right side
   3,986.82x = 21,390,608.18
5. Step 5: Solve for x
   x = 21,390,608.18/3,986.82
6. Step 6: Final answer
   x = 5,365.33