Finding the Fourth Proportional to 1,335.67, 1,843.09 and 838.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.67 : 1,843.09 = 838.23 : x
2. Step 2: Convert to fraction form
   1,335.67/1,843.09 = 838.23/x
3. Step 3: Cross multiply
   1,335.67x = 1,843.09 × 838.23
4. Step 4: Simplify right side
   1,335.67x = 1,544,933.33
5. Step 5: Solve for x
   x = 1,544,933.33/1,335.67
6. Step 6: Final answer
   x = 1,156.67