Finding the Fourth Proportional to 5,548.17, 7,654.17 and 3,870.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,548.17 : 7,654.17 = 3,870.57 : x
2. Step 2: Convert to fraction form
   5,548.17/7,654.17 = 3,870.57/x
3. Step 3: Cross multiply
   5,548.17x = 7,654.17 × 3,870.57
4. Step 4: Simplify right side
   5,548.17x = 29,626,000.78
5. Step 5: Solve for x
   x = 29,626,000.78/5,548.17
6. Step 6: Final answer
   x = 5,339.78