Finding the Fourth Proportional to 2,068.52, 3,102.01 and 681.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.52 : 3,102.01 = 681.45 : x
2. Step 2: Convert to fraction form
   2,068.52/3,102.01 = 681.45/x
3. Step 3: Cross multiply
   2,068.52x = 3,102.01 × 681.45
4. Step 4: Simplify right side
   2,068.52x = 2,113,864.71
5. Step 5: Solve for x
   x = 2,113,864.71/2,068.52
6. Step 6: Final answer
   x = 1,021.92