Finding the Fourth Proportional to 1,031.76, 1,545.78 and 684.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.76 : 1,545.78 = 684.27 : x
2. Step 2: Convert to fraction form
   1,031.76/1,545.78 = 684.27/x
3. Step 3: Cross multiply
   1,031.76x = 1,545.78 × 684.27
4. Step 4: Simplify right side
   1,031.76x = 1,057,730.88
5. Step 5: Solve for x
   x = 1,057,730.88/1,031.76
6. Step 6: Final answer
   x = 1,025.17