Finding the Fourth Proportional to 2,872.47, 4,308.59 and 792.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.47 : 4,308.59 = 792.71 : x
2. Step 2: Convert to fraction form
   2,872.47/4,308.59 = 792.71/x
3. Step 3: Cross multiply
   2,872.47x = 4,308.59 × 792.71
4. Step 4: Simplify right side
   2,872.47x = 3,415,436.87
5. Step 5: Solve for x
   x = 3,415,436.87/2,872.47
6. Step 6: Final answer
   x = 1,189.02