Finding the Fourth Proportional to 3,958.39, 5,908.35 and 3,491.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.39 : 5,908.35 = 3,491.46 : x
2. Step 2: Convert to fraction form
   3,958.39/5,908.35 = 3,491.46/x
3. Step 3: Cross multiply
   3,958.39x = 5,908.35 × 3,491.46
4. Step 4: Simplify right side
   3,958.39x = 20,628,767.69
5. Step 5: Solve for x
   x = 20,628,767.69/3,958.39
6. Step 6: Final answer
   x = 5,211.40