Finding the Fourth Proportional to 3,881.39, 5,822.01 and 959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,881.39 : 5,822.01 = 959.72 : x
2. Step 2: Convert to fraction form
   3,881.39/5,822.01 = 959.72/x
3. Step 3: Cross multiply
   3,881.39x = 5,822.01 × 959.72
4. Step 4: Simplify right side
   3,881.39x = 5,587,470.33
5. Step 5: Solve for x
   x = 5,587,470.33/3,881.39
6. Step 6: Final answer
   x = 1,439.56