Finding the Fourth Proportional to 5,392.17, 8,087.04 and 2,103.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,392.17 : 8,087.04 = 2,103.57 : x
2. Step 2: Convert to fraction form
   5,392.17/8,087.04 = 2,103.57/x
3. Step 3: Cross multiply
   5,392.17x = 8,087.04 × 2,103.57
4. Step 4: Simplify right side
   5,392.17x = 17,011,654.73
5. Step 5: Solve for x
   x = 17,011,654.73/5,392.17
6. Step 6: Final answer
   x = 3,154.88