Finding the Fourth Proportional to 1,054.24, 1,454.80 and 582.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.24 : 1,454.80 = 582.15 : x
2. Step 2: Convert to fraction form
   1,054.24/1,454.80 = 582.15/x
3. Step 3: Cross multiply
   1,054.24x = 1,454.80 × 582.15
4. Step 4: Simplify right side
   1,054.24x = 846,911.82
5. Step 5: Solve for x
   x = 846,911.82/1,054.24
6. Step 6: Final answer
   x = 803.34