Finding the Fourth Proportional to 1,095, 1,510.72 and 622.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095 : 1,510.72 = 622.84 : x
2. Step 2: Convert to fraction form
   1,095/1,510.72 = 622.84/x
3. Step 3: Cross multiply
   1,095x = 1,510.72 × 622.84
4. Step 4: Simplify right side
   1,095x = 940,936.84
5. Step 5: Solve for x
   x = 940,936.84/1,095
6. Step 6: Final answer
   x = 859.30