Finding the Fourth Proportional to 2,174.39, 3,257.87 and 1,433.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174.39 : 3,257.87 = 1,433.55 : x
2. Step 2: Convert to fraction form
   2,174.39/3,257.87 = 1,433.55/x
3. Step 3: Cross multiply
   2,174.39x = 3,257.87 × 1,433.55
4. Step 4: Simplify right side
   2,174.39x = 4,670,314.33
5. Step 5: Solve for x
   x = 4,670,314.33/2,174.39
6. Step 6: Final answer
   x = 2,147.87