Finding the Fourth Proportional to 1,413.20, 1,952.88 and 1,063.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.20 : 1,952.88 = 1,063.28 : x
2. Step 2: Convert to fraction form
   1,413.20/1,952.88 = 1,063.28/x
3. Step 3: Cross multiply
   1,413.20x = 1,952.88 × 1,063.28
4. Step 4: Simplify right side
   1,413.20x = 2,076,458.25
5. Step 5: Solve for x
   x = 2,076,458.25/1,413.20
6. Step 6: Final answer
   x = 1,469.33