Finding the Fourth Proportional to 1,408.10, 2,109.83 and 483.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.10 : 2,109.83 = 483.17 : x
2. Step 2: Convert to fraction form
   1,408.10/2,109.83 = 483.17/x
3. Step 3: Cross multiply
   1,408.10x = 2,109.83 × 483.17
4. Step 4: Simplify right side
   1,408.10x = 1,019,393.60
5. Step 5: Solve for x
   x = 1,019,393.60/1,408.10
6. Step 6: Final answer
   x = 723.95