Finding the Fourth Proportional to 1,150.35, 1,718.78 and 852.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.35 : 1,718.78 = 852.58 : x
2. Step 2: Convert to fraction form
   1,150.35/1,718.78 = 852.58/x
3. Step 3: Cross multiply
   1,150.35x = 1,718.78 × 852.58
4. Step 4: Simplify right side
   1,150.35x = 1,465,397.45
5. Step 5: Solve for x
   x = 1,465,397.45/1,150.35
6. Step 6: Final answer
   x = 1,273.87