Finding the Fourth Proportional to 4,821.90, 7,224.27 and 2,219.34

Step by Step Solution

1. Step 1: Write the proportion equation
   4,821.90 : 7,224.27 = 2,219.34 : x
2. Step 2: Convert to fraction form
   4,821.90/7,224.27 = 2,219.34/x
3. Step 3: Cross multiply
   4,821.90x = 7,224.27 × 2,219.34
4. Step 4: Simplify right side
   4,821.90x = 16,033,111.38
5. Step 5: Solve for x
   x = 16,033,111.38/4,821.90
6. Step 6: Final answer
   x = 3,325.06