Finding the Fourth Proportional to 1,413.68, 1,951.06 and 816.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.68 : 1,951.06 = 816.26 : x
2. Step 2: Convert to fraction form
   1,413.68/1,951.06 = 816.26/x
3. Step 3: Cross multiply
   1,413.68x = 1,951.06 × 816.26
4. Step 4: Simplify right side
   1,413.68x = 1,592,572.24
5. Step 5: Solve for x
   x = 1,592,572.24/1,413.68
6. Step 6: Final answer
   x = 1,126.54