Finding the Fourth Proportional to 3,601.40, 5,401.69 and 1,521.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,601.40 : 5,401.69 = 1,521.73 : x
2. Step 2: Convert to fraction form
   3,601.40/5,401.69 = 1,521.73/x
3. Step 3: Cross multiply
   3,601.40x = 5,401.69 × 1,521.73
4. Step 4: Simplify right side
   3,601.40x = 8,219,913.72
5. Step 5: Solve for x
   x = 8,219,913.72/3,601.40
6. Step 6: Final answer
   x = 2,282.42