Finding the Fourth Proportional to 1,131.82, 1,696.56 and 582.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.82 : 1,696.56 = 582.78 : x
2. Step 2: Convert to fraction form
   1,131.82/1,696.56 = 582.78/x
3. Step 3: Cross multiply
   1,131.82x = 1,696.56 × 582.78
4. Step 4: Simplify right side
   1,131.82x = 988,721.24
5. Step 5: Solve for x
   x = 988,721.24/1,131.82
6. Step 6: Final answer
   x = 873.57