Finding the Fourth Proportional to 3,699.82, 5,097.07 and 2,578.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.82 : 5,097.07 = 2,578.72 : x
2. Step 2: Convert to fraction form
   3,699.82/5,097.07 = 2,578.72/x
3. Step 3: Cross multiply
   3,699.82x = 5,097.07 × 2,578.72
4. Step 4: Simplify right side
   3,699.82x = 13,143,903.46
5. Step 5: Solve for x
   x = 13,143,903.46/3,699.82
6. Step 6: Final answer
   x = 3,552.58