Finding the Fourth Proportional to 1,003.27, 1,505.05 and 310.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.27 : 1,505.05 = 310.00 : x
2. Step 2: Convert to fraction form
   1,003.27/1,505.05 = 310.00/x
3. Step 3: Cross multiply
   1,003.27x = 1,505.05 × 310.00
4. Step 4: Simplify right side
   1,003.27x = 466,557.97
5. Step 5: Solve for x
   x = 466,557.97/1,003.27
6. Step 6: Final answer
   x = 465.04