Finding the Fourth Proportional to 1,119.86, 1,545.33 and 622.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.86 : 1,545.33 = 622.52 : x
2. Step 2: Convert to fraction form
   1,119.86/1,545.33 = 622.52/x
3. Step 3: Cross multiply
   1,119.86x = 1,545.33 × 622.52
4. Step 4: Simplify right side
   1,119.86x = 961,998.83
5. Step 5: Solve for x
   x = 961,998.83/1,119.86
6. Step 6: Final answer
   x = 859.03