Finding the Fourth Proportional to 4,766.58, 7,137.69 and 2,820.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,766.58 : 7,137.69 = 2,820.18 : x
2. Step 2: Convert to fraction form
   4,766.58/7,137.69 = 2,820.18/x
3. Step 3: Cross multiply
   4,766.58x = 7,137.69 × 2,820.18
4. Step 4: Simplify right side
   4,766.58x = 20,129,570.58
5. Step 5: Solve for x
   x = 20,129,570.58/4,766.58
6. Step 6: Final answer
   x = 4,223.06