Finding the Fourth Proportional to 2,641.75, 3,962.79 and 792.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.75 : 3,962.79 = 792.69 : x
2. Step 2: Convert to fraction form
   2,641.75/3,962.79 = 792.69/x
3. Step 3: Cross multiply
   2,641.75x = 3,962.79 × 792.69
4. Step 4: Simplify right side
   2,641.75x = 3,141,249.14
5. Step 5: Solve for x
   x = 3,141,249.14/2,641.75
6. Step 6: Final answer
   x = 1,189.08