Finding the Fourth Proportional to 2,168.21, 3,252.41 and 1,805.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.21 : 3,252.41 = 1,805.56 : x
2. Step 2: Convert to fraction form
   2,168.21/3,252.41 = 1,805.56/x
3. Step 3: Cross multiply
   2,168.21x = 3,252.41 × 1,805.56
4. Step 4: Simplify right side
   2,168.21x = 5,872,417.78
5. Step 5: Solve for x
   x = 5,872,417.78/2,168.21
6. Step 6: Final answer
   x = 2,708.41