Finding the Fourth Proportional to 2,405.10, 3,590.25 and 2,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.10 : 3,590.25 = 2,113.50 : x
2. Step 2: Convert to fraction form
   2,405.10/3,590.25 = 2,113.50/x
3. Step 3: Cross multiply
   2,405.10x = 3,590.25 × 2,113.50
4. Step 4: Simplify right side
   2,405.10x = 7,587,993.38
5. Step 5: Solve for x
   x = 7,587,993.38/2,405.10
6. Step 6: Final answer
   x = 3,154.96