Finding the Fourth Proportional to 2,661.10, 3,993.37 and 1,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.10 : 3,993.37 = 1,200.16 : x
2. Step 2: Convert to fraction form
   2,661.10/3,993.37 = 1,200.16/x
3. Step 3: Cross multiply
   2,661.10x = 3,993.37 × 1,200.16
4. Step 4: Simplify right side
   2,661.10x = 4,792,684.93
5. Step 5: Solve for x
   x = 4,792,684.93/2,661.10
6. Step 6: Final answer
   x = 1,801.02