Finding the Fourth Proportional to 1,432.25, 1,976.54 and 842.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.25 : 1,976.54 = 842.82 : x
2. Step 2: Convert to fraction form
   1,432.25/1,976.54 = 842.82/x
3. Step 3: Cross multiply
   1,432.25x = 1,976.54 × 842.82
4. Step 4: Simplify right side
   1,432.25x = 1,665,863.23
5. Step 5: Solve for x
   x = 1,665,863.23/1,432.25
6. Step 6: Final answer
   x = 1,163.11