Finding the Fourth Proportional to 2,967.50, 4,085.78 and 2,613.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,967.50 : 4,085.78 = 2,613.18 : x
2. Step 2: Convert to fraction form
   2,967.50/4,085.78 = 2,613.18/x
3. Step 3: Cross multiply
   2,967.50x = 4,085.78 × 2,613.18
4. Step 4: Simplify right side
   2,967.50x = 10,676,878.58
5. Step 5: Solve for x
   x = 10,676,878.58/2,967.50
6. Step 6: Final answer
   x = 3,597.94