Finding the Fourth Proportional to 1,363.56, 1,881.27 and 866.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.56 : 1,881.27 = 866.43 : x
2. Step 2: Convert to fraction form
   1,363.56/1,881.27 = 866.43/x
3. Step 3: Cross multiply
   1,363.56x = 1,881.27 × 866.43
4. Step 4: Simplify right side
   1,363.56x = 1,629,988.77
5. Step 5: Solve for x
   x = 1,629,988.77/1,363.56
6. Step 6: Final answer
   x = 1,195.39