Finding the Fourth Proportional to 1,472.27, 2,031.10 and 1,078.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.27 : 2,031.10 = 1,078.61 : x
2. Step 2: Convert to fraction form
   1,472.27/2,031.10 = 1,078.61/x
3. Step 3: Cross multiply
   1,472.27x = 2,031.10 × 1,078.61
4. Step 4: Simplify right side
   1,472.27x = 2,190,751.92
5. Step 5: Solve for x
   x = 2,190,751.92/1,472.27
6. Step 6: Final answer
   x = 1,488.01