Finding the Fourth Proportional to 1,404.72, 2,105.56 and 582.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.72 : 2,105.56 = 582.47 : x
2. Step 2: Convert to fraction form
   1,404.72/2,105.56 = 582.47/x
3. Step 3: Cross multiply
   1,404.72x = 2,105.56 × 582.47
4. Step 4: Simplify right side
   1,404.72x = 1,226,425.53
5. Step 5: Solve for x
   x = 1,226,425.53/1,404.72
6. Step 6: Final answer
   x = 873.07