Finding the Fourth Proportional to 2,664.16, 3,993.55 and 1,105.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.16 : 3,993.55 = 1,105.02 : x
2. Step 2: Convert to fraction form
   2,664.16/3,993.55 = 1,105.02/x
3. Step 3: Cross multiply
   2,664.16x = 3,993.55 × 1,105.02
4. Step 4: Simplify right side
   2,664.16x = 4,412,952.62
5. Step 5: Solve for x
   x = 4,412,952.62/2,664.16
6. Step 6: Final answer
   x = 1,656.41