Finding the Fourth Proportional to 1,034.31, 1,550.71 and 486.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.31 : 1,550.71 = 486.19 : x
2. Step 2: Convert to fraction form
   1,034.31/1,550.71 = 486.19/x
3. Step 3: Cross multiply
   1,034.31x = 1,550.71 × 486.19
4. Step 4: Simplify right side
   1,034.31x = 753,939.69
5. Step 5: Solve for x
   x = 753,939.69/1,034.31
6. Step 6: Final answer
   x = 728.93