Finding the Fourth Proportional to 2,461.23, 3,398.91 and 2,105.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,461.23 : 3,398.91 = 2,105.10 : x
2. Step 2: Convert to fraction form
   2,461.23/3,398.91 = 2,105.10/x
3. Step 3: Cross multiply
   2,461.23x = 3,398.91 × 2,105.10
4. Step 4: Simplify right side
   2,461.23x = 7,155,045.44
5. Step 5: Solve for x
   x = 7,155,045.44/2,461.23
6. Step 6: Final answer
   x = 2,907.10