Finding the Fourth Proportional to 1,062.92, 1,587.00 and 997.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.92 : 1,587.00 = 997.31 : x
2. Step 2: Convert to fraction form
   1,062.92/1,587.00 = 997.31/x
3. Step 3: Cross multiply
   1,062.92x = 1,587.00 × 997.31
4. Step 4: Simplify right side
   1,062.92x = 1,582,725.98
5. Step 5: Solve for x
   x = 1,582,725.98/1,062.92
6. Step 6: Final answer
   x = 1,489.04