Finding the Fourth Proportional to 1,356.91, 1,872.32 and 797.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.91 : 1,872.32 = 797.33 : x
2. Step 2: Convert to fraction form
   1,356.91/1,872.32 = 797.33/x
3. Step 3: Cross multiply
   1,356.91x = 1,872.32 × 797.33
4. Step 4: Simplify right side
   1,356.91x = 1,492,857.60
5. Step 5: Solve for x
   x = 1,492,857.60/1,356.91
6. Step 6: Final answer
   x = 1,100.19