Finding the Fourth Proportional to 3,613.35, 4,985.17 and 2,196.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.35 : 4,985.17 = 2,196.59 : x
2. Step 2: Convert to fraction form
   3,613.35/4,985.17 = 2,196.59/x
3. Step 3: Cross multiply
   3,613.35x = 4,985.17 × 2,196.59
4. Step 4: Simplify right side
   3,613.35x = 10,950,371.08
5. Step 5: Solve for x
   x = 10,950,371.08/3,613.35
6. Step 6: Final answer
   x = 3,030.53