Finding the Fourth Proportional to 2,012.49, 3,019.34 and 1,664.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.49 : 3,019.34 = 1,664.25 : x
2. Step 2: Convert to fraction form
   2,012.49/3,019.34 = 1,664.25/x
3. Step 3: Cross multiply
   2,012.49x = 3,019.34 × 1,664.25
4. Step 4: Simplify right side
   2,012.49x = 5,024,936.60
5. Step 5: Solve for x
   x = 5,024,936.60/2,012.49
6. Step 6: Final answer
   x = 2,496.88