Finding the Fourth Proportional to 1,488.27, 2,053.92 and 825.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.27 : 2,053.92 = 825.18 : x
2. Step 2: Convert to fraction form
   1,488.27/2,053.92 = 825.18/x
3. Step 3: Cross multiply
   1,488.27x = 2,053.92 × 825.18
4. Step 4: Simplify right side
   1,488.27x = 1,694,853.71
5. Step 5: Solve for x
   x = 1,694,853.71/1,488.27
6. Step 6: Final answer
   x = 1,138.81