Finding the Fourth Proportional to 1,413.21, 1,949.55 and 889.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.21 : 1,949.55 = 889.14 : x
2. Step 2: Convert to fraction form
   1,413.21/1,949.55 = 889.14/x
3. Step 3: Cross multiply
   1,413.21x = 1,949.55 × 889.14
4. Step 4: Simplify right side
   1,413.21x = 1,733,422.89
5. Step 5: Solve for x
   x = 1,733,422.89/1,413.21
6. Step 6: Final answer
   x = 1,226.59