Finding the Fourth Proportional to 2,191.62, 3,288.33 and 958.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.62 : 3,288.33 = 958.41 : x
2. Step 2: Convert to fraction form
   2,191.62/3,288.33 = 958.41/x
3. Step 3: Cross multiply
   2,191.62x = 3,288.33 × 958.41
4. Step 4: Simplify right side
   2,191.62x = 3,151,568.36
5. Step 5: Solve for x
   x = 3,151,568.36/2,191.62
6. Step 6: Final answer
   x = 1,438.01