Finding the Fourth Proportional to 2,942.19, 4,412.27 and 993.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.19 : 4,412.27 = 993.94 : x
2. Step 2: Convert to fraction form
   2,942.19/4,412.27 = 993.94/x
3. Step 3: Cross multiply
   2,942.19x = 4,412.27 × 993.94
4. Step 4: Simplify right side
   2,942.19x = 4,385,523.10
5. Step 5: Solve for x
   x = 4,385,523.10/2,942.19
6. Step 6: Final answer
   x = 1,490.56