Finding the Fourth Proportional to 1,413.77, 1,951.40 and 994.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.77 : 1,951.40 = 994.22 : x
2. Step 2: Convert to fraction form
   1,413.77/1,951.40 = 994.22/x
3. Step 3: Cross multiply
   1,413.77x = 1,951.40 × 994.22
4. Step 4: Simplify right side
   1,413.77x = 1,940,106.18
5. Step 5: Solve for x
   x = 1,940,106.18/1,413.77
6. Step 6: Final answer
   x = 1,372.30