Finding the Fourth Proportional to 2,663.79, 3,676.20 and 1,485.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.79 : 3,676.20 = 1,485.09 : x
2. Step 2: Convert to fraction form
   2,663.79/3,676.20 = 1,485.09/x
3. Step 3: Cross multiply
   2,663.79x = 3,676.20 × 1,485.09
4. Step 4: Simplify right side
   2,663.79x = 5,459,487.86
5. Step 5: Solve for x
   x = 5,459,487.86/2,663.79
6. Step 6: Final answer
   x = 2,049.52