Finding the Fourth Proportional to 1,196.06, 1,650.71 and 865.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.06 : 1,650.71 = 865.58 : x
2. Step 2: Convert to fraction form
   1,196.06/1,650.71 = 865.58/x
3. Step 3: Cross multiply
   1,196.06x = 1,650.71 × 865.58
4. Step 4: Simplify right side
   1,196.06x = 1,428,815.47
5. Step 5: Solve for x
   x = 1,428,815.47/1,196.06
6. Step 6: Final answer
   x = 1,194.61