Finding the Fourth Proportional to 2,300.10, 3,450.18 and 656.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.10 : 3,450.18 = 656.70 : x
2. Step 2: Convert to fraction form
   2,300.10/3,450.18 = 656.70/x
3. Step 3: Cross multiply
   2,300.10x = 3,450.18 × 656.70
4. Step 4: Simplify right side
   2,300.10x = 2,265,733.21
5. Step 5: Solve for x
   x = 2,265,733.21/2,300.10
6. Step 6: Final answer
   x = 985.06