Finding the Fourth Proportional to 2,196.10, 3,293.19 and 656.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.10 : 3,293.19 = 656.74 : x
2. Step 2: Convert to fraction form
   2,196.10/3,293.19 = 656.74/x
3. Step 3: Cross multiply
   2,196.10x = 3,293.19 × 656.74
4. Step 4: Simplify right side
   2,196.10x = 2,162,769.60
5. Step 5: Solve for x
   x = 2,162,769.60/2,196.10
6. Step 6: Final answer
   x = 984.82