Finding the Fourth Proportional to 2,300.40, 3,450.12 and 656.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.40 : 3,450.12 = 656.50 : x
2. Step 2: Convert to fraction form
   2,300.40/3,450.12 = 656.50/x
3. Step 3: Cross multiply
   2,300.40x = 3,450.12 × 656.50
4. Step 4: Simplify right side
   2,300.40x = 2,265,003.78
5. Step 5: Solve for x
   x = 2,265,003.78/2,300.40
6. Step 6: Final answer
   x = 984.61