Finding the Fourth Proportional to 1,381.66, 1,906.74 and 792.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.66 : 1,906.74 = 792.25 : x
2. Step 2: Convert to fraction form
   1,381.66/1,906.74 = 792.25/x
3. Step 3: Cross multiply
   1,381.66x = 1,906.74 × 792.25
4. Step 4: Simplify right side
   1,381.66x = 1,510,610.00
5. Step 5: Solve for x
   x = 1,510,610.00/1,381.66
6. Step 6: Final answer
   x = 1,093.33