Finding the Fourth Proportional to 1,665.96, 2,500.50 and 1,601.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.96 : 2,500.50 = 1,601.16 : x
2. Step 2: Convert to fraction form
   1,665.96/2,500.50 = 1,601.16/x
3. Step 3: Cross multiply
   1,665.96x = 2,500.50 × 1,601.16
4. Step 4: Simplify right side
   1,665.96x = 4,003,700.58
5. Step 5: Solve for x
   x = 4,003,700.58/1,665.96
6. Step 6: Final answer
   x = 2,403.24