Finding the Fourth Proportional to 2,133.88, 3,201.86 and 964.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.88 : 3,201.86 = 964.69 : x
2. Step 2: Convert to fraction form
   2,133.88/3,201.86 = 964.69/x
3. Step 3: Cross multiply
   2,133.88x = 3,201.86 × 964.69
4. Step 4: Simplify right side
   2,133.88x = 3,088,797.50
5. Step 5: Solve for x
   x = 3,088,797.50/2,133.88
6. Step 6: Final answer
   x = 1,447.50