Finding the Fourth Proportional to 1,002.71, 1,501.77 and 483.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.71 : 1,501.77 = 483.09 : x
2. Step 2: Convert to fraction form
   1,002.71/1,501.77 = 483.09/x
3. Step 3: Cross multiply
   1,002.71x = 1,501.77 × 483.09
4. Step 4: Simplify right side
   1,002.71x = 725,480.15
5. Step 5: Solve for x
   x = 725,480.15/1,002.71
6. Step 6: Final answer
   x = 723.52