Finding the Fourth Proportional to 4,871.85, 7,297.29 and 2,786.00

Step by Step Solution

1. Step 1: Write the proportion equation
   4,871.85 : 7,297.29 = 2,786.00 : x
2. Step 2: Convert to fraction form
   4,871.85/7,297.29 = 2,786.00/x
3. Step 3: Cross multiply
   4,871.85x = 7,297.29 × 2,786.00
4. Step 4: Simplify right side
   4,871.85x = 20,330,213.45
5. Step 5: Solve for x
   x = 20,330,213.45/4,871.85
6. Step 6: Final answer
   x = 4,173.00