Finding the Fourth Proportional to 1,413.97, 2,112.27 and 1,020.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.97 : 2,112.27 = 1,020.61 : x
2. Step 2: Convert to fraction form
   1,413.97/2,112.27 = 1,020.61/x
3. Step 3: Cross multiply
   1,413.97x = 2,112.27 × 1,020.61
4. Step 4: Simplify right side
   1,413.97x = 2,155,803.88
5. Step 5: Solve for x
   x = 2,155,803.88/1,413.97
6. Step 6: Final answer
   x = 1,524.65