Finding the Fourth Proportional to 1,404.47, 2,106.32 and 582.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.47 : 2,106.32 = 582.55 : x
2. Step 2: Convert to fraction form
   1,404.47/2,106.32 = 582.55/x
3. Step 3: Cross multiply
   1,404.47x = 2,106.32 × 582.55
4. Step 4: Simplify right side
   1,404.47x = 1,227,036.72
5. Step 5: Solve for x
   x = 1,227,036.72/1,404.47
6. Step 6: Final answer
   x = 873.67