Finding the Fourth Proportional to 1,413.57, 1,948.93 and 1,010.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.57 : 1,948.93 = 1,010.28 : x
2. Step 2: Convert to fraction form
   1,413.57/1,948.93 = 1,010.28/x
3. Step 3: Cross multiply
   1,413.57x = 1,948.93 × 1,010.28
4. Step 4: Simplify right side
   1,413.57x = 1,968,968.16
5. Step 5: Solve for x
   x = 1,968,968.16/1,413.57
6. Step 6: Final answer
   x = 1,392.90