Finding the Fourth Proportional to 2,171.72, 3,258.08 and 710.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.72 : 3,258.08 = 710.84 : x
2. Step 2: Convert to fraction form
   2,171.72/3,258.08 = 710.84/x
3. Step 3: Cross multiply
   2,171.72x = 3,258.08 × 710.84
4. Step 4: Simplify right side
   2,171.72x = 2,315,973.59
5. Step 5: Solve for x
   x = 2,315,973.59/2,171.72
6. Step 6: Final answer
   x = 1,066.42