Finding the Fourth Proportional to 1,019.33, 1,413.89 and 984.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.33 : 1,413.89 = 984.36 : x
2. Step 2: Convert to fraction form
   1,019.33/1,413.89 = 984.36/x
3. Step 3: Cross multiply
   1,019.33x = 1,413.89 × 984.36
4. Step 4: Simplify right side
   1,019.33x = 1,391,771.84
5. Step 5: Solve for x
   x = 1,391,771.84/1,019.33
6. Step 6: Final answer
   x = 1,365.39