Finding the Fourth Proportional to 5,388.42, 8,082.62 and 2,103.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.42 : 8,082.62 = 2,103.82 : x
2. Step 2: Convert to fraction form
   5,388.42/8,082.62 = 2,103.82/x
3. Step 3: Cross multiply
   5,388.42x = 8,082.62 × 2,103.82
4. Step 4: Simplify right side
   5,388.42x = 17,004,354.77
5. Step 5: Solve for x
   x = 17,004,354.77/5,388.42
6. Step 6: Final answer
   x = 3,155.72