Finding the Fourth Proportional to 2,126.49, 3,185.49 and 1,662.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.49 : 3,185.49 = 1,662.10 : x
2. Step 2: Convert to fraction form
   2,126.49/3,185.49 = 1,662.10/x
3. Step 3: Cross multiply
   2,126.49x = 3,185.49 × 1,662.10
4. Step 4: Simplify right side
   2,126.49x = 5,294,602.93
5. Step 5: Solve for x
   x = 5,294,602.93/2,126.49
6. Step 6: Final answer
   x = 2,489.83