Finding the Fourth Proportional to 3,410.49, 5,108.31 and 2,090.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,410.49 : 5,108.31 = 2,090.25 : x
2. Step 2: Convert to fraction form
   3,410.49/5,108.31 = 2,090.25/x
3. Step 3: Cross multiply
   3,410.49x = 5,108.31 × 2,090.25
4. Step 4: Simplify right side
   3,410.49x = 10,677,644.98
5. Step 5: Solve for x
   x = 10,677,644.98/3,410.49
6. Step 6: Final answer
   x = 3,130.82