Finding the Fourth Proportional to 2,185.59, 3,271.37 and 1,209.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.59 : 3,271.37 = 1,209.27 : x
2. Step 2: Convert to fraction form
   2,185.59/3,271.37 = 1,209.27/x
3. Step 3: Cross multiply
   2,185.59x = 3,271.37 × 1,209.27
4. Step 4: Simplify right side
   2,185.59x = 3,955,963.55
5. Step 5: Solve for x
   x = 3,955,963.55/2,185.59
6. Step 6: Final answer
   x = 1,810.02