Finding the Fourth Proportional to 2,810.10, 4,211.55 and 2,486.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.10 : 4,211.55 = 2,486.10 : x
2. Step 2: Convert to fraction form
   2,810.10/4,211.55 = 2,486.10/x
3. Step 3: Cross multiply
   2,810.10x = 4,211.55 × 2,486.10
4. Step 4: Simplify right side
   2,810.10x = 10,470,334.46
5. Step 5: Solve for x
   x = 10,470,334.46/2,810.10
6. Step 6: Final answer
   x = 3,725.97