Finding the Fourth Proportional to 1,413.45, 1,946.43 and 1,019.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.45 : 1,946.43 = 1,019.79 : x
2. Step 2: Convert to fraction form
   1,413.45/1,946.43 = 1,019.79/x
3. Step 3: Cross multiply
   1,413.45x = 1,946.43 × 1,019.79
4. Step 4: Simplify right side
   1,413.45x = 1,984,949.85
5. Step 5: Solve for x
   x = 1,984,949.85/1,413.45
6. Step 6: Final answer
   x = 1,404.33