Finding the Fourth Proportional to 3,964.07, 5,969.27 and 2,931.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.07 : 5,969.27 = 2,931.35 : x
2. Step 2: Convert to fraction form
   3,964.07/5,969.27 = 2,931.35/x
3. Step 3: Cross multiply
   3,964.07x = 5,969.27 × 2,931.35
4. Step 4: Simplify right side
   3,964.07x = 17,498,016.57
5. Step 5: Solve for x
   x = 17,498,016.57/3,964.07
6. Step 6: Final answer
   x = 4,414.16