Finding the Fourth Proportional to 1,381.80, 1,906.84 and 792.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.80 : 1,906.84 = 792.32 : x
2. Step 2: Convert to fraction form
   1,381.80/1,906.84 = 792.32/x
3. Step 3: Cross multiply
   1,381.80x = 1,906.84 × 792.32
4. Step 4: Simplify right side
   1,381.80x = 1,510,827.47
5. Step 5: Solve for x
   x = 1,510,827.47/1,381.80
6. Step 6: Final answer
   x = 1,093.38