Finding the Fourth Proportional to 1,336.22, 1,844.98 and 864.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.22 : 1,844.98 = 864.40 : x
2. Step 2: Convert to fraction form
   1,336.22/1,844.98 = 864.40/x
3. Step 3: Cross multiply
   1,336.22x = 1,844.98 × 864.40
4. Step 4: Simplify right side
   1,336.22x = 1,594,800.71
5. Step 5: Solve for x
   x = 1,594,800.71/1,336.22
6. Step 6: Final answer
   x = 1,193.52