Finding the Fourth Proportional to 2,064.11, 3,096.30 and 831.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.11 : 3,096.30 = 831.53 : x
2. Step 2: Convert to fraction form
   2,064.11/3,096.30 = 831.53/x
3. Step 3: Cross multiply
   2,064.11x = 3,096.30 × 831.53
4. Step 4: Simplify right side
   2,064.11x = 2,574,650.86
5. Step 5: Solve for x
   x = 2,574,650.86/2,064.11
6. Step 6: Final answer
   x = 1,247.34