Finding the Fourth Proportional to 1,645.92, 2,271.51 and 1,016.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.92 : 2,271.51 = 1,016.55 : x
2. Step 2: Convert to fraction form
   1,645.92/2,271.51 = 1,016.55/x
3. Step 3: Cross multiply
   1,645.92x = 2,271.51 × 1,016.55
4. Step 4: Simplify right side
   1,645.92x = 2,309,103.49
5. Step 5: Solve for x
   x = 2,309,103.49/1,645.92
6. Step 6: Final answer
   x = 1,402.93