Finding the Fourth Proportional to 5,704.89, 7,872.87 and 3,580.51

Step by Step Solution

1. Step 1: Write the proportion equation
   5,704.89 : 7,872.87 = 3,580.51 : x
2. Step 2: Convert to fraction form
   5,704.89/7,872.87 = 3,580.51/x
3. Step 3: Cross multiply
   5,704.89x = 7,872.87 × 3,580.51
4. Step 4: Simplify right side
   5,704.89x = 28,188,889.76
5. Step 5: Solve for x
   x = 28,188,889.76/5,704.89
6. Step 6: Final answer
   x = 4,941.18