Finding the Fourth Proportional to 1,635.92, 2,454.72 and 662.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.92 : 2,454.72 = 662.72 : x
2. Step 2: Convert to fraction form
   1,635.92/2,454.72 = 662.72/x
3. Step 3: Cross multiply
   1,635.92x = 2,454.72 × 662.72
4. Step 4: Simplify right side
   1,635.92x = 1,626,792.04
5. Step 5: Solve for x
   x = 1,626,792.04/1,635.92
6. Step 6: Final answer
   x = 994.42