Finding the Fourth Proportional to 1,065.00, 1,469.60 and 622.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.00 : 1,469.60 = 622.82 : x
2. Step 2: Convert to fraction form
   1,065.00/1,469.60 = 622.82/x
3. Step 3: Cross multiply
   1,065.00x = 1,469.60 × 622.82
4. Step 4: Simplify right side
   1,065.00x = 915,291.82
5. Step 5: Solve for x
   x = 915,291.82/1,065.00
6. Step 6: Final answer
   x = 859.43