Finding the Fourth Proportional to 2,664.40, 3,676.89 and 1,485.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.40 : 3,676.89 = 1,485.55 : x
2. Step 2: Convert to fraction form
   2,664.40/3,676.89 = 1,485.55/x
3. Step 3: Cross multiply
   2,664.40x = 3,676.89 × 1,485.55
4. Step 4: Simplify right side
   2,664.40x = 5,462,203.94
5. Step 5: Solve for x
   x = 5,462,203.94/2,664.40
6. Step 6: Final answer
   x = 2,050.07