Finding the Fourth Proportional to 2,664.72, 3,677.18 and 1,485.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.72 : 3,677.18 = 1,485.57 : x
2. Step 2: Convert to fraction form
   2,664.72/3,677.18 = 1,485.57/x
3. Step 3: Cross multiply
   2,664.72x = 3,677.18 × 1,485.57
4. Step 4: Simplify right side
   2,664.72x = 5,462,708.29
5. Step 5: Solve for x
   x = 5,462,708.29/2,664.72
6. Step 6: Final answer
   x = 2,050.01