Finding the Fourth Proportional to 1,381.32, 1,906.07 and 792.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.32 : 1,906.07 = 792.05 : x
2. Step 2: Convert to fraction form
   1,381.32/1,906.07 = 792.05/x
3. Step 3: Cross multiply
   1,381.32x = 1,906.07 × 792.05
4. Step 4: Simplify right side
   1,381.32x = 1,509,689.25
5. Step 5: Solve for x
   x = 1,509,689.25/1,381.32
6. Step 6: Final answer
   x = 1,092.93