Finding the Fourth Proportional to 1,146.84, 1,582.59 and 622.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.84 : 1,582.59 = 622.86 : x
2. Step 2: Convert to fraction form
   1,146.84/1,582.59 = 622.86/x
3. Step 3: Cross multiply
   1,146.84x = 1,582.59 × 622.86
4. Step 4: Simplify right side
   1,146.84x = 985,732.01
5. Step 5: Solve for x
   x = 985,732.01/1,146.84
6. Step 6: Final answer
   x = 859.52