Finding the Fourth Proportional to 2,230.54, 3,346.72 and 997.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.54 : 3,346.72 = 997.72 : x
2. Step 2: Convert to fraction form
   2,230.54/3,346.72 = 997.72/x
3. Step 3: Cross multiply
   2,230.54x = 3,346.72 × 997.72
4. Step 4: Simplify right side
   2,230.54x = 3,339,078.62
5. Step 5: Solve for x
   x = 3,339,078.62/2,230.54
6. Step 6: Final answer
   x = 1,496.98