Finding the Fourth Proportional to 2,986.17, 4,449.25 and 2,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.17 : 4,449.25 = 2,818.50 : x
2. Step 2: Convert to fraction form
   2,986.17/4,449.25 = 2,818.50/x
3. Step 3: Cross multiply
   2,986.17x = 4,449.25 × 2,818.50
4. Step 4: Simplify right side
   2,986.17x = 12,540,211.13
5. Step 5: Solve for x
   x = 12,540,211.13/2,986.17
6. Step 6: Final answer
   x = 4,199.43