Finding the Fourth Proportional to 2,063.68, 3,096.23 and 831.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.68 : 3,096.23 = 831.47 : x
2. Step 2: Convert to fraction form
   2,063.68/3,096.23 = 831.47/x
3. Step 3: Cross multiply
   2,063.68x = 3,096.23 × 831.47
4. Step 4: Simplify right side
   2,063.68x = 2,574,402.72
5. Step 5: Solve for x
   x = 2,574,402.72/2,063.68
6. Step 6: Final answer
   x = 1,247.48