Finding the Fourth Proportional to 5,092.72, 7,027.78 and 2,854.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,092.72 : 7,027.78 = 2,854.60 : x
2. Step 2: Convert to fraction form
   5,092.72/7,027.78 = 2,854.60/x
3. Step 3: Cross multiply
   5,092.72x = 7,027.78 × 2,854.60
4. Step 4: Simplify right side
   5,092.72x = 20,061,500.79
5. Step 5: Solve for x
   x = 20,061,500.79/5,092.72
6. Step 6: Final answer
   x = 3,939.25