Finding the Fourth Proportional to 5,128.54, 7,695.22 and 2,662.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,128.54 : 7,695.22 = 2,662.02 : x
2. Step 2: Convert to fraction form
   5,128.54/7,695.22 = 2,662.02/x
3. Step 3: Cross multiply
   5,128.54x = 7,695.22 × 2,662.02
4. Step 4: Simplify right side
   5,128.54x = 20,484,829.54
5. Step 5: Solve for x
   x = 20,484,829.54/5,128.54
6. Step 6: Final answer
   x = 3,994.28