Finding the Fourth Proportional to 3,105.45, 4,656.61 and 996.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.45 : 4,656.61 = 996.79 : x
2. Step 2: Convert to fraction form
   3,105.45/4,656.61 = 996.79/x
3. Step 3: Cross multiply
   3,105.45x = 4,656.61 × 996.79
4. Step 4: Simplify right side
   3,105.45x = 4,641,662.28
5. Step 5: Solve for x
   x = 4,641,662.28/3,105.45
6. Step 6: Final answer
   x = 1,494.68