Finding the Fourth Proportional to 1,616.54, 2,422.73 and 1,031.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.54 : 2,422.73 = 1,031.31 : x
2. Step 2: Convert to fraction form
   1,616.54/2,422.73 = 1,031.31/x
3. Step 3: Cross multiply
   1,616.54x = 2,422.73 × 1,031.31
4. Step 4: Simplify right side
   1,616.54x = 2,498,588.25
5. Step 5: Solve for x
   x = 2,498,588.25/1,616.54
6. Step 6: Final answer
   x = 1,545.64