Finding the Fourth Proportional to 1,413.42, 1,949.33 and 909.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.42 : 1,949.33 = 909.36 : x
2. Step 2: Convert to fraction form
   1,413.42/1,949.33 = 909.36/x
3. Step 3: Cross multiply
   1,413.42x = 1,949.33 × 909.36
4. Step 4: Simplify right side
   1,413.42x = 1,772,649.39
5. Step 5: Solve for x
   x = 1,772,649.39/1,413.42
6. Step 6: Final answer
   x = 1,254.15