Finding the Fourth Proportional to 2,065.19, 3,095.42 and 831.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.19 : 3,095.42 = 831.81 : x
2. Step 2: Convert to fraction form
   2,065.19/3,095.42 = 831.81/x
3. Step 3: Cross multiply
   2,065.19x = 3,095.42 × 831.81
4. Step 4: Simplify right side
   2,065.19x = 2,574,801.31
5. Step 5: Solve for x
   x = 2,574,801.31/2,065.19
6. Step 6: Final answer
   x = 1,246.76