Finding the Fourth Proportional to 1,065.02, 1,469.74 and 622.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.02 : 1,469.74 = 622.84 : x
2. Step 2: Convert to fraction form
   1,065.02/1,469.74 = 622.84/x
3. Step 3: Cross multiply
   1,065.02x = 1,469.74 × 622.84
4. Step 4: Simplify right side
   1,065.02x = 915,412.86
5. Step 5: Solve for x
   x = 915,412.86/1,065.02
6. Step 6: Final answer
   x = 859.53