Finding the Fourth Proportional to 1,404.24, 2,106.89 and 582.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.24 : 2,106.89 = 582.45 : x
2. Step 2: Convert to fraction form
   1,404.24/2,106.89 = 582.45/x
3. Step 3: Cross multiply
   1,404.24x = 2,106.89 × 582.45
4. Step 4: Simplify right side
   1,404.24x = 1,227,152.73
5. Step 5: Solve for x
   x = 1,227,152.73/1,404.24
6. Step 6: Final answer
   x = 873.89