Finding the Fourth Proportional to 2,872.89, 4,308.54 and 792.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.89 : 4,308.54 = 792.42 : x
2. Step 2: Convert to fraction form
   2,872.89/4,308.54 = 792.42/x
3. Step 3: Cross multiply
   2,872.89x = 4,308.54 × 792.42
4. Step 4: Simplify right side
   2,872.89x = 3,414,173.27
5. Step 5: Solve for x
   x = 3,414,173.27/2,872.89
6. Step 6: Final answer
   x = 1,188.41