Finding the Fourth Proportional to 2,641.62, 3,962.39 and 792.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.62 : 3,962.39 = 792.71 : x
2. Step 2: Convert to fraction form
   2,641.62/3,962.39 = 792.71/x
3. Step 3: Cross multiply
   2,641.62x = 3,962.39 × 792.71
4. Step 4: Simplify right side
   2,641.62x = 3,141,002.40
5. Step 5: Solve for x
   x = 3,141,002.40/2,641.62
6. Step 6: Final answer
   x = 1,189.04