Finding the Fourth Proportional to 1,413.66, 1,949.86 and 994.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,413.66 : 1,949.86 = 994.88 : x
2. Step 2: Convert to fraction form
   1,413.66/1,949.86 = 994.88/x
3. Step 3: Cross multiply
   1,413.66x = 1,949.86 × 994.88
4. Step 4: Simplify right side
   1,413.66x = 1,939,876.72
5. Step 5: Solve for x
   x = 1,939,876.72/1,413.66
6. Step 6: Final answer
   x = 1,372.24