Finding the Fourth Proportional to 3,782.23, 5,219.20 and 2,103.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.23 : 5,219.20 = 2,103.56 : x
2. Step 2: Convert to fraction form
   3,782.23/5,219.20 = 2,103.56/x
3. Step 3: Cross multiply
   3,782.23x = 5,219.20 × 2,103.56
4. Step 4: Simplify right side
   3,782.23x = 10,978,900.35
5. Step 5: Solve for x
   x = 10,978,900.35/3,782.23
6. Step 6: Final answer
   x = 2,902.76