Finding the Fourth Proportional to 1,488.21, 2,054.07 and 963.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.21 : 2,054.07 = 963.33 : x
2. Step 2: Convert to fraction form
   1,488.21/2,054.07 = 963.33/x
3. Step 3: Cross multiply
   1,488.21x = 2,054.07 × 963.33
4. Step 4: Simplify right side
   1,488.21x = 1,978,747.25
5. Step 5: Solve for x
   x = 1,978,747.25/1,488.21
6. Step 6: Final answer
   x = 1,329.62