Finding the Fourth Proportional to 1,054.30, 1,454.82 and 582.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.30 : 1,454.82 = 582.23 : x
2. Step 2: Convert to fraction form
   1,054.30/1,454.82 = 582.23/x
3. Step 3: Cross multiply
   1,054.30x = 1,454.82 × 582.23
4. Step 4: Simplify right side
   1,054.30x = 847,039.85
5. Step 5: Solve for x
   x = 847,039.85/1,054.30
6. Step 6: Final answer
   x = 803.41