Finding the Fourth Proportional to 2,066.49, 3,100.26 and 680.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.49 : 3,100.26 = 680.04 : x
2. Step 2: Convert to fraction form
   2,066.49/3,100.26 = 680.04/x
3. Step 3: Cross multiply
   2,066.49x = 3,100.26 × 680.04
4. Step 4: Simplify right side
   2,066.49x = 2,108,300.81
5. Step 5: Solve for x
   x = 2,108,300.81/2,066.49
6. Step 6: Final answer
   x = 1,020.23