Finding the Fourth Proportional to 1,003.48, 1,504.86 and 483.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.48 : 1,504.86 = 483.08 : x
2. Step 2: Convert to fraction form
   1,003.48/1,504.86 = 483.08/x
3. Step 3: Cross multiply
   1,003.48x = 1,504.86 × 483.08
4. Step 4: Simplify right side
   1,003.48x = 726,967.77
5. Step 5: Solve for x
   x = 726,967.77/1,003.48
6. Step 6: Final answer
   x = 724.45