Finding the Fourth Proportional to 1,629.72, 2,429.12 and 1,616.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.72 : 2,429.12 = 1,616.96 : x
2. Step 2: Convert to fraction form
   1,629.72/2,429.12 = 1,616.96/x
3. Step 3: Cross multiply
   1,629.72x = 2,429.12 × 1,616.96
4. Step 4: Simplify right side
   1,629.72x = 3,927,799.99
5. Step 5: Solve for x
   x = 3,927,799.99/1,629.72
6. Step 6: Final answer
   x = 2,410.11