Finding the Fourth Proportional to 1,381.48, 1,906.32 and 792.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381.48 : 1,906.32 = 792.16 : x
2. Step 2: Convert to fraction form
   1,381.48/1,906.32 = 792.16/x
3. Step 3: Cross multiply
   1,381.48x = 1,906.32 × 792.16
4. Step 4: Simplify right side
   1,381.48x = 1,510,110.45
5. Step 5: Solve for x
   x = 1,510,110.45/1,381.48
6. Step 6: Final answer
   x = 1,093.11