Finding the Fourth Proportional to 1,002.36, 1,383.42 and 582.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.36 : 1,383.42 = 582.90 : x
2. Step 2: Convert to fraction form
   1,002.36/1,383.42 = 582.90/x
3. Step 3: Cross multiply
   1,002.36x = 1,383.42 × 582.90
4. Step 4: Simplify right side
   1,002.36x = 806,395.52
5. Step 5: Solve for x
   x = 806,395.52/1,002.36
6. Step 6: Final answer
   x = 804.50