Finding the Fourth Proportional to 3,617.83, 5,429.82 and 2,580.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617.83 : 5,429.82 = 2,580.37 : x
2. Step 2: Convert to fraction form
   3,617.83/5,429.82 = 2,580.37/x
3. Step 3: Cross multiply
   3,617.83x = 5,429.82 × 2,580.37
4. Step 4: Simplify right side
   3,617.83x = 14,010,944.63
5. Step 5: Solve for x
   x = 14,010,944.63/3,617.83
6. Step 6: Final answer
   x = 3,872.75