Finding the Fourth Proportional to 2,064.33, 3,096.45 and 831.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.33 : 3,096.45 = 831.71 : x
2. Step 2: Convert to fraction form
   2,064.33/3,096.45 = 831.71/x
3. Step 3: Cross multiply
   2,064.33x = 3,096.45 × 831.71
4. Step 4: Simplify right side
   2,064.33x = 2,575,332.95
5. Step 5: Solve for x
   x = 2,575,332.95/2,064.33
6. Step 6: Final answer
   x = 1,247.54