Finding the Fourth Proportional to 3,105.56, 4,659.29 and 997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.56 : 4,659.29 = 997.50 : x
2. Step 2: Convert to fraction form
   3,105.56/4,659.29 = 997.50/x
3. Step 3: Cross multiply
   3,105.56x = 4,659.29 × 997.50
4. Step 4: Simplify right side
   3,105.56x = 4,647,641.78
5. Step 5: Solve for x
   x = 4,647,641.78/3,105.56
6. Step 6: Final answer
   x = 1,496.56