Finding the Fourth Proportional to 2,096.70, 3,143.52 and 709.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.70 : 3,143.52 = 709.20 : x
2. Step 2: Convert to fraction form
   2,096.70/3,143.52 = 709.20/x
3. Step 3: Cross multiply
   2,096.70x = 3,143.52 × 709.20
4. Step 4: Simplify right side
   2,096.70x = 2,229,384.38
5. Step 5: Solve for x
   x = 2,229,384.38/2,096.70
6. Step 6: Final answer
   x = 1,063.28