Finding the Fourth Proportional to 2,559.10, 3,815.61 and 2,495.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.10 : 3,815.61 = 2,495.32 : x
2. Step 2: Convert to fraction form
   2,559.10/3,815.61 = 2,495.32/x
3. Step 3: Cross multiply
   2,559.10x = 3,815.61 × 2,495.32
4. Step 4: Simplify right side
   2,559.10x = 9,521,167.95
5. Step 5: Solve for x
   x = 9,521,167.95/2,559.10
6. Step 6: Final answer
   x = 3,720.51