Finding the Fourth Proportional to 2,068.49, 3,102.06 and 681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.49 : 3,102.06 = 681.50 : x
2. Step 2: Convert to fraction form
   2,068.49/3,102.06 = 681.50/x
3. Step 3: Cross multiply
   2,068.49x = 3,102.06 × 681.50
4. Step 4: Simplify right side
   2,068.49x = 2,114,038.38
5. Step 5: Solve for x
   x = 2,114,038.38/2,068.49
6. Step 6: Final answer
   x = 1,022.02