Finding the Fourth Proportional to 1,364.45, 1,883.15 and 867.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.45 : 1,883.15 = 867.31 : x
2. Step 2: Convert to fraction form
   1,364.45/1,883.15 = 867.31/x
3. Step 3: Cross multiply
   1,364.45x = 1,883.15 × 867.31
4. Step 4: Simplify right side
   1,364.45x = 1,633,269.03
5. Step 5: Solve for x
   x = 1,633,269.03/1,364.45
6. Step 6: Final answer
   x = 1,197.02