Finding the Fourth Proportional to 1,913.82, 2,871.50 and 681.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.82 : 2,871.50 = 681.32 : x
2. Step 2: Convert to fraction form
   1,913.82/2,871.50 = 681.32/x
3. Step 3: Cross multiply
   1,913.82x = 2,871.50 × 681.32
4. Step 4: Simplify right side
   1,913.82x = 1,956,392.62
5. Step 5: Solve for x
   x = 1,956,392.62/1,913.82
6. Step 6: Final answer
   x = 1,022.24