Finding the Fourth Proportional to 1,038.49, 1,558.37 and 483.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038.49 : 1,558.37 = 483.10 : x
2. Step 2: Convert to fraction form
   1,038.49/1,558.37 = 483.10/x
3. Step 3: Cross multiply
   1,038.49x = 1,558.37 × 483.10
4. Step 4: Simplify right side
   1,038.49x = 752,845.86
5. Step 5: Solve for x
   x = 752,845.86/1,038.49
6. Step 6: Final answer
   x = 724.94