Finding the Fourth Proportional to 1,151.28, 1,588.82 and 854.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.28 : 1,588.82 = 854.82 : x
2. Step 2: Convert to fraction form
   1,151.28/1,588.82 = 854.82/x
3. Step 3: Cross multiply
   1,151.28x = 1,588.82 × 854.82
4. Step 4: Simplify right side
   1,151.28x = 1,358,150.84
5. Step 5: Solve for x
   x = 1,358,150.84/1,151.28
6. Step 6: Final answer
   x = 1,179.69