Finding the Fourth Proportional to 1,034.28, 1,549.98 and 485.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.28 : 1,549.98 = 485.10 : x
2. Step 2: Convert to fraction form
   1,034.28/1,549.98 = 485.10/x
3. Step 3: Cross multiply
   1,034.28x = 1,549.98 × 485.10
4. Step 4: Simplify right side
   1,034.28x = 751,895.30
5. Step 5: Solve for x
   x = 751,895.30/1,034.28
6. Step 6: Final answer
   x = 726.97