Finding the Fourth Proportional to 1,119.37, 1,544.72 and 622.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.37 : 1,544.72 = 622.00 : x
2. Step 2: Convert to fraction form
   1,119.37/1,544.72 = 622.00/x
3. Step 3: Cross multiply
   1,119.37x = 1,544.72 × 622.00
4. Step 4: Simplify right side
   1,119.37x = 960,822.50
5. Step 5: Solve for x
   x = 960,822.50/1,119.37
6. Step 6: Final answer
   x = 858.36