Finding the Fourth Proportional to 1,352.76, 1,865.82 and 855.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.76 : 1,865.82 = 855.48 : x
2. Step 2: Convert to fraction form
   1,352.76/1,865.82 = 855.48/x
3. Step 3: Cross multiply
   1,352.76x = 1,865.82 × 855.48
4. Step 4: Simplify right side
   1,352.76x = 1,596,171.69
5. Step 5: Solve for x
   x = 1,596,171.69/1,352.76
6. Step 6: Final answer
   x = 1,179.94