Finding the Fourth Proportional to 1,364.16, 1,881.27 and 866.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.16 : 1,881.27 = 866.28 : x
2. Step 2: Convert to fraction form
   1,364.16/1,881.27 = 866.28/x
3. Step 3: Cross multiply
   1,364.16x = 1,881.27 × 866.28
4. Step 4: Simplify right side
   1,364.16x = 1,629,706.58
5. Step 5: Solve for x
   x = 1,629,706.58/1,364.16
6. Step 6: Final answer
   x = 1,194.66