Finding the Fourth Proportional to 1,326.86, 1,831.83 and 886.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326.86 : 1,831.83 = 886.22 : x
2. Step 2: Convert to fraction form
   1,326.86/1,831.83 = 886.22/x
3. Step 3: Cross multiply
   1,326.86x = 1,831.83 × 886.22
4. Step 4: Simplify right side
   1,326.86x = 1,623,404.38
5. Step 5: Solve for x
   x = 1,623,404.38/1,326.86
6. Step 6: Final answer
   x = 1,223.49