Finding the Fourth Proportional to 1,381.74, 1,906.02 and 792.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.74 : 1,906.02 = 792.18 : x
2. Step 2: Convert to fraction form
   1,381.74/1,906.02 = 792.18/x
3. Step 3: Cross multiply
   1,381.74x = 1,906.02 × 792.18
4. Step 4: Simplify right side
   1,381.74x = 1,509,910.92
5. Step 5: Solve for x
   x = 1,509,910.92/1,381.74
6. Step 6: Final answer
   x = 1,092.76