Finding the Fourth Proportional to 3,661.93, 5,054.43 and 2,170.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.93 : 5,054.43 = 2,170.30 : x
2. Step 2: Convert to fraction form
   3,661.93/5,054.43 = 2,170.30/x
3. Step 3: Cross multiply
   3,661.93x = 5,054.43 × 2,170.30
4. Step 4: Simplify right side
   3,661.93x = 10,969,629.43
5. Step 5: Solve for x
   x = 10,969,629.43/3,661.93
6. Step 6: Final answer
   x = 2,995.59