Finding the Fourth Proportional to 1,413.36, 1,950.18 and 890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.36 : 1,950.18 = 890.10 : x
2. Step 2: Convert to fraction form
   1,413.36/1,950.18 = 890.10/x
3. Step 3: Cross multiply
   1,413.36x = 1,950.18 × 890.10
4. Step 4: Simplify right side
   1,413.36x = 1,735,855.22
5. Step 5: Solve for x
   x = 1,735,855.22/1,413.36
6. Step 6: Final answer
   x = 1,228.18