Finding the Fourth Proportional to 3,661.20, 5,490.59 and 1,063.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.20 : 5,490.59 = 1,063.53 : x
2. Step 2: Convert to fraction form
   3,661.20/5,490.59 = 1,063.53/x
3. Step 3: Cross multiply
   3,661.20x = 5,490.59 × 1,063.53
4. Step 4: Simplify right side
   3,661.20x = 5,839,401.87
5. Step 5: Solve for x
   x = 5,839,401.87/3,661.20
6. Step 6: Final answer
   x = 1,594.94