Finding the Fourth Proportional to 1,078.86, 1,614.76 and 584.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.86 : 1,614.76 = 584.52 : x
2. Step 2: Convert to fraction form
   1,078.86/1,614.76 = 584.52/x
3. Step 3: Cross multiply
   1,078.86x = 1,614.76 × 584.52
4. Step 4: Simplify right side
   1,078.86x = 943,859.52
5. Step 5: Solve for x
   x = 943,859.52/1,078.86
6. Step 6: Final answer
   x = 874.87