Finding the Fourth Proportional to 4,443.69, 6,658.23 and 1,520.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,443.69 : 6,658.23 = 1,520.40 : x
2. Step 2: Convert to fraction form
   4,443.69/6,658.23 = 1,520.40/x
3. Step 3: Cross multiply
   4,443.69x = 6,658.23 × 1,520.40
4. Step 4: Simplify right side
   4,443.69x = 10,123,172.89
5. Step 5: Solve for x
   x = 10,123,172.89/4,443.69
6. Step 6: Final answer
   x = 2,278.10