Finding the Fourth Proportional to 1,208.82, 1,811.89 and 792.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,208.82 : 1,811.89 = 792.18 : x
2. Step 2: Convert to fraction form
   1,208.82/1,811.89 = 792.18/x
3. Step 3: Cross multiply
   1,208.82x = 1,811.89 × 792.18
4. Step 4: Simplify right side
   1,208.82x = 1,435,343.02
5. Step 5: Solve for x
   x = 1,435,343.02/1,208.82
6. Step 6: Final answer
   x = 1,187.39