Finding the Fourth Proportional to 3,983.72, 5,976.54 and 1,675.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.72 : 5,976.54 = 1,675.40 : x
2. Step 2: Convert to fraction form
   3,983.72/5,976.54 = 1,675.40/x
3. Step 3: Cross multiply
   3,983.72x = 5,976.54 × 1,675.40
4. Step 4: Simplify right side
   3,983.72x = 10,013,095.12
5. Step 5: Solve for x
   x = 10,013,095.12/3,983.72
6. Step 6: Final answer
   x = 2,513.50