Finding the Fourth Proportional to 1,087.02, 1,629.02 and 470.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.02 : 1,629.02 = 470.42 : x
2. Step 2: Convert to fraction form
   1,087.02/1,629.02 = 470.42/x
3. Step 3: Cross multiply
   1,087.02x = 1,629.02 × 470.42
4. Step 4: Simplify right side
   1,087.02x = 766,323.59
5. Step 5: Solve for x
   x = 766,323.59/1,087.02
6. Step 6: Final answer
   x = 704.98