Finding the Fourth Proportional to 1,336.96, 1,845.86 and 865.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.96 : 1,845.86 = 865.09 : x
2. Step 2: Convert to fraction form
   1,336.96/1,845.86 = 865.09/x
3. Step 3: Cross multiply
   1,336.96x = 1,845.86 × 865.09
4. Step 4: Simplify right side
   1,336.96x = 1,596,824.72
5. Step 5: Solve for x
   x = 1,596,824.72/1,336.96
6. Step 6: Final answer
   x = 1,194.37