Finding the Fourth Proportional to 2,607.34, 3,911.02 and 659.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.34 : 3,911.02 = 659.54 : x
2. Step 2: Convert to fraction form
   2,607.34/3,911.02 = 659.54/x
3. Step 3: Cross multiply
   2,607.34x = 3,911.02 × 659.54
4. Step 4: Simplify right side
   2,607.34x = 2,579,475.78
5. Step 5: Solve for x
   x = 2,579,475.78/2,607.34
6. Step 6: Final answer
   x = 989.31