Finding the Fourth Proportional to 1,914.50, 2,871.57 and 681.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.50 : 2,871.57 = 681.86 : x
2. Step 2: Convert to fraction form
   1,914.50/2,871.57 = 681.86/x
3. Step 3: Cross multiply
   1,914.50x = 2,871.57 × 681.86
4. Step 4: Simplify right side
   1,914.50x = 1,958,008.72
5. Step 5: Solve for x
   x = 1,958,008.72/1,914.50
6. Step 6: Final answer
   x = 1,022.73