Finding the Fourth Proportional to 3,782.16, 5,219.39 and 2,103.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,782.16 : 5,219.39 = 2,103.53 : x
2. Step 2: Convert to fraction form
   3,782.16/5,219.39 = 2,103.53/x
3. Step 3: Cross multiply
   3,782.16x = 5,219.39 × 2,103.53
4. Step 4: Simplify right side
   3,782.16x = 10,979,106.83
5. Step 5: Solve for x
   x = 10,979,106.83/3,782.16
6. Step 6: Final answer
   x = 2,902.87