Finding the Fourth Proportional to 1,404.87, 2,106.12 and 582.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.87 : 2,106.12 = 582.63 : x
2. Step 2: Convert to fraction form
   1,404.87/2,106.12 = 582.63/x
3. Step 3: Cross multiply
   1,404.87x = 2,106.12 × 582.63
4. Step 4: Simplify right side
   1,404.87x = 1,227,085.78
5. Step 5: Solve for x
   x = 1,227,085.78/1,404.87
6. Step 6: Final answer
   x = 873.45