Finding the Fourth Proportional to 1,381.73, 1,906.81 and 792.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.73 : 1,906.81 = 792.28 : x
2. Step 2: Convert to fraction form
   1,381.73/1,906.81 = 792.28/x
3. Step 3: Cross multiply
   1,381.73x = 1,906.81 × 792.28
4. Step 4: Simplify right side
   1,381.73x = 1,510,727.83
5. Step 5: Solve for x
   x = 1,510,727.83/1,381.73
6. Step 6: Final answer
   x = 1,093.36