Finding the Fourth Proportional to 2,171.56, 3,256.61 and 710.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.56 : 3,256.61 = 710.37 : x
2. Step 2: Convert to fraction form
   2,171.56/3,256.61 = 710.37/x
3. Step 3: Cross multiply
   2,171.56x = 3,256.61 × 710.37
4. Step 4: Simplify right side
   2,171.56x = 2,313,399.82
5. Step 5: Solve for x
   x = 2,313,399.82/2,171.56
6. Step 6: Final answer
   x = 1,065.32