Finding the Fourth Proportional to 1,413.26, 1,950.06 and 815.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.26 : 1,950.06 = 815.69 : x
2. Step 2: Convert to fraction form
   1,413.26/1,950.06 = 815.69/x
3. Step 3: Cross multiply
   1,413.26x = 1,950.06 × 815.69
4. Step 4: Simplify right side
   1,413.26x = 1,590,636.82
5. Step 5: Solve for x
   x = 1,590,636.82/1,413.26
6. Step 6: Final answer
   x = 1,125.51