Finding the Fourth Proportional to 4,921.72, 7,383.46 and 1,635.02

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921.72 : 7,383.46 = 1,635.02 : x
2. Step 2: Convert to fraction form
   4,921.72/7,383.46 = 1,635.02/x
3. Step 3: Cross multiply
   4,921.72x = 7,383.46 × 1,635.02
4. Step 4: Simplify right side
   4,921.72x = 12,072,104.77
5. Step 5: Solve for x
   x = 12,072,104.77/4,921.72
6. Step 6: Final answer
   x = 2,452.82