Finding the Fourth Proportional to 1,365.82, 1,885.13 and 868.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.82 : 1,885.13 = 868.37 : x
2. Step 2: Convert to fraction form
   1,365.82/1,885.13 = 868.37/x
3. Step 3: Cross multiply
   1,365.82x = 1,885.13 × 868.37
4. Step 4: Simplify right side
   1,365.82x = 1,636,984.71
5. Step 5: Solve for x
   x = 1,636,984.71/1,365.82
6. Step 6: Final answer
   x = 1,198.53