Finding the Fourth Proportional to 3,330.50, 4,995.72 and 1,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,330.50 : 4,995.72 = 1,109.50 : x
2. Step 2: Convert to fraction form
   3,330.50/4,995.72 = 1,109.50/x
3. Step 3: Cross multiply
   3,330.50x = 4,995.72 × 1,109.50
4. Step 4: Simplify right side
   3,330.50x = 5,542,738.85
5. Step 5: Solve for x
   x = 5,542,738.85/3,330.50
6. Step 6: Final answer
   x = 1,664.24