Finding the Fourth Proportional to 5,818.50, 8,028.72 and 3,580.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,818.50 : 8,028.72 = 3,580.74 : x
2. Step 2: Convert to fraction form
   5,818.50/8,028.72 = 3,580.74/x
3. Step 3: Cross multiply
   5,818.50x = 8,028.72 × 3,580.74
4. Step 4: Simplify right side
   5,818.50x = 28,748,758.85
5. Step 5: Solve for x
   x = 28,748,758.85/5,818.50
6. Step 6: Final answer
   x = 4,940.92