Finding the Fourth Proportional to 3,581.52, 5,375.76 and 3,384.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.52 : 5,375.76 = 3,384.30 : x
2. Step 2: Convert to fraction form
   3,581.52/5,375.76 = 3,384.30/x
3. Step 3: Cross multiply
   3,581.52x = 5,375.76 × 3,384.30
4. Step 4: Simplify right side
   3,581.52x = 18,193,184.57
5. Step 5: Solve for x
   x = 18,193,184.57/3,581.52
6. Step 6: Final answer
   x = 5,079.74