Finding the Fourth Proportional to 2,117.25, 3,176.18 and 656.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.25 : 3,176.18 = 656.52 : x
2. Step 2: Convert to fraction form
   2,117.25/3,176.18 = 656.52/x
3. Step 3: Cross multiply
   2,117.25x = 3,176.18 × 656.52
4. Step 4: Simplify right side
   2,117.25x = 2,085,225.69
5. Step 5: Solve for x
   x = 2,085,225.69/2,117.25
6. Step 6: Final answer
   x = 984.87