Finding the Fourth Proportional to 2,175.57, 3,257.14 and 1,443.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.57 : 3,257.14 = 1,443.69 : x
2. Step 2: Convert to fraction form
   2,175.57/3,257.14 = 1,443.69/x
3. Step 3: Cross multiply
   2,175.57x = 3,257.14 × 1,443.69
4. Step 4: Simplify right side
   2,175.57x = 4,702,300.45
5. Step 5: Solve for x
   x = 4,702,300.45/2,175.57
6. Step 6: Final answer
   x = 2,161.41