Finding the Fourth Proportional to 3,699.57, 5,096.72 and 2,578.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.57 : 5,096.72 = 2,578.47 : x
2. Step 2: Convert to fraction form
   3,699.57/5,096.72 = 2,578.47/x
3. Step 3: Cross multiply
   3,699.57x = 5,096.72 × 2,578.47
4. Step 4: Simplify right side
   3,699.57x = 13,141,739.62
5. Step 5: Solve for x
   x = 13,141,739.62/3,699.57
6. Step 6: Final answer
   x = 3,552.23