Finding the Fourth Proportional to 3,782.72, 5,220.72 and 2,210.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.72 : 5,220.72 = 2,210.72 : x
2. Step 2: Convert to fraction form
   3,782.72/5,220.72 = 2,210.72/x
3. Step 3: Cross multiply
   3,782.72x = 5,220.72 × 2,210.72
4. Step 4: Simplify right side
   3,782.72x = 11,541,524.01
5. Step 5: Solve for x
   x = 11,541,524.01/3,782.72
6. Step 6: Final answer
   x = 3,051.12