Finding the Fourth Proportional to 3,629.50, 5,443.49 and 1,778.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,629.50 : 5,443.49 = 1,778.75 : x
2. Step 2: Convert to fraction form
   3,629.50/5,443.49 = 1,778.75/x
3. Step 3: Cross multiply
   3,629.50x = 5,443.49 × 1,778.75
4. Step 4: Simplify right side
   3,629.50x = 9,682,607.84
5. Step 5: Solve for x
   x = 9,682,607.84/3,629.50
6. Step 6: Final answer
   x = 2,667.75