Finding the Fourth Proportional to 4,986.30, 6,880.72 and 2,997.96

Step by Step Solution

1. Step 1: Write the proportion equation
   4,986.30 : 6,880.72 = 2,997.96 : x
2. Step 2: Convert to fraction form
   4,986.30/6,880.72 = 2,997.96/x
3. Step 3: Cross multiply
   4,986.30x = 6,880.72 × 2,997.96
4. Step 4: Simplify right side
   4,986.30x = 20,628,123.33
5. Step 5: Solve for x
   x = 20,628,123.33/4,986.30
6. Step 6: Final answer
   x = 4,136.96