Finding the Fourth Proportional to 2,942.10, 4,413.80 and 994.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.10 : 4,413.80 = 994.25 : x
2. Step 2: Convert to fraction form
   2,942.10/4,413.80 = 994.25/x
3. Step 3: Cross multiply
   2,942.10x = 4,413.80 × 994.25
4. Step 4: Simplify right side
   2,942.10x = 4,388,409.62
5. Step 5: Solve for x
   x = 4,388,409.62/2,942.10
6. Step 6: Final answer
   x = 1,491.59