Finding the Fourth Proportional to 5,401.62, 8,100.81 and 1,704.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,401.62 : 8,100.81 = 1,704.78 : x
2. Step 2: Convert to fraction form
   5,401.62/8,100.81 = 1,704.78/x
3. Step 3: Cross multiply
   5,401.62x = 8,100.81 × 1,704.78
4. Step 4: Simplify right side
   5,401.62x = 13,810,098.87
5. Step 5: Solve for x
   x = 13,810,098.87/5,401.62
6. Step 6: Final answer
   x = 2,556.66