Finding the Fourth Proportional to 5,111.85, 7,662.01 and 2,606

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111.85 : 7,662.01 = 2,606 : x
2. Step 2: Convert to fraction form
   5,111.85/7,662.01 = 2,606/x
3. Step 3: Cross multiply
   5,111.85x = 7,662.01 × 2,606
4. Step 4: Simplify right side
   5,111.85x = 19,967,198.06
5. Step 5: Solve for x
   x = 19,967,198.06/5,111.85
6. Step 6: Final answer
   x = 3,906.06