Finding the Fourth Proportional to 2,171.29, 3,256.20 and 710.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.29 : 3,256.20 = 710.08 : x
2. Step 2: Convert to fraction form
   2,171.29/3,256.20 = 710.08/x
3. Step 3: Cross multiply
   2,171.29x = 3,256.20 × 710.08
4. Step 4: Simplify right side
   2,171.29x = 2,312,162.50
5. Step 5: Solve for x
   x = 2,312,162.50/2,171.29
6. Step 6: Final answer
   x = 1,064.88