Finding the Fourth Proportional to 2,227.10, 3,340.71 and 994.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.10 : 3,340.71 = 994.22 : x
2. Step 2: Convert to fraction form
   2,227.10/3,340.71 = 994.22/x
3. Step 3: Cross multiply
   2,227.10x = 3,340.71 × 994.22
4. Step 4: Simplify right side
   2,227.10x = 3,321,400.70
5. Step 5: Solve for x
   x = 3,321,400.70/2,227.10
6. Step 6: Final answer
   x = 1,491.36