Finding the Fourth Proportional to 5,086.48, 7,629.72 and 1,624

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.48 : 7,629.72 = 1,624 : x
2. Step 2: Convert to fraction form
   5,086.48/7,629.72 = 1,624/x
3. Step 3: Cross multiply
   5,086.48x = 7,629.72 × 1,624
4. Step 4: Simplify right side
   5,086.48x = 12,390,665.28
5. Step 5: Solve for x
   x = 12,390,665.28/5,086.48
6. Step 6: Final answer
   x = 2,436.00