Finding the Fourth Proportional to 2,628.88, 3,943.71 and 963.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.88 : 3,943.71 = 963.09 : x
2. Step 2: Convert to fraction form
   2,628.88/3,943.71 = 963.09/x
3. Step 3: Cross multiply
   2,628.88x = 3,943.71 × 963.09
4. Step 4: Simplify right side
   2,628.88x = 3,798,147.66
5. Step 5: Solve for x
   x = 3,798,147.66/2,628.88
6. Step 6: Final answer
   x = 1,444.78