Finding the Fourth Proportional to 2,068.59, 3,102.64 and 681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.59 : 3,102.64 = 681.94 : x
2. Step 2: Convert to fraction form
   2,068.59/3,102.64 = 681.94/x
3. Step 3: Cross multiply
   2,068.59x = 3,102.64 × 681.94
4. Step 4: Simplify right side
   2,068.59x = 2,115,814.32
5. Step 5: Solve for x
   x = 2,115,814.32/2,068.59
6. Step 6: Final answer
   x = 1,022.83