Finding the Fourth Proportional to 1,831.89, 2,744.72 and 1,309.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.89 : 2,744.72 = 1,309.23 : x
2. Step 2: Convert to fraction form
   1,831.89/2,744.72 = 1,309.23/x
3. Step 3: Cross multiply
   1,831.89x = 2,744.72 × 1,309.23
4. Step 4: Simplify right side
   1,831.89x = 3,593,479.90
5. Step 5: Solve for x
   x = 3,593,479.90/1,831.89
6. Step 6: Final answer
   x = 1,961.63