Finding the Fourth Proportional to 2,196.57, 3,295.18 and 715.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.57 : 3,295.18 = 715.30 : x
2. Step 2: Convert to fraction form
   2,196.57/3,295.18 = 715.30/x
3. Step 3: Cross multiply
   2,196.57x = 3,295.18 × 715.30
4. Step 4: Simplify right side
   2,196.57x = 2,357,048.70
5. Step 5: Solve for x
   x = 2,357,048.70/2,196.57
6. Step 6: Final answer
   x = 1,073.06