Finding the Fourth Proportional to 2,150.72, 3,223.52 and 994.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.72 : 3,223.52 = 994.08 : x
2. Step 2: Convert to fraction form
   2,150.72/3,223.52 = 994.08/x
3. Step 3: Cross multiply
   2,150.72x = 3,223.52 × 994.08
4. Step 4: Simplify right side
   2,150.72x = 3,204,436.76
5. Step 5: Solve for x
   x = 3,204,436.76/2,150.72
6. Step 6: Final answer
   x = 1,489.94