Finding the Fourth Proportional to 2,171.89, 3,258.38 and 1,002.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.89 : 3,258.38 = 1,002.71 : x
2. Step 2: Convert to fraction form
   2,171.89/3,258.38 = 1,002.71/x
3. Step 3: Cross multiply
   2,171.89x = 3,258.38 × 1,002.71
4. Step 4: Simplify right side
   2,171.89x = 3,267,210.21
5. Step 5: Solve for x
   x = 3,267,210.21/2,171.89
6. Step 6: Final answer
   x = 1,504.32