Finding the Fourth Proportional to 1,675.95, 2,513.69 and 443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,675.95 : 2,513.69 = 443.25 : x
2. Step 2: Convert to fraction form
   1,675.95/2,513.69 = 443.25/x
3. Step 3: Cross multiply
   1,675.95x = 2,513.69 × 443.25
4. Step 4: Simplify right side
   1,675.95x = 1,114,190.88
5. Step 5: Solve for x
   x = 1,114,190.88/1,675.95
6. Step 6: Final answer
   x = 664.81