Finding the Fourth Proportional to 2,662.66, 3,674.83 and 1,528.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.66 : 3,674.83 = 1,528.78 : x
2. Step 2: Convert to fraction form
   2,662.66/3,674.83 = 1,528.78/x
3. Step 3: Cross multiply
   2,662.66x = 3,674.83 × 1,528.78
4. Step 4: Simplify right side
   2,662.66x = 5,617,998.96
5. Step 5: Solve for x
   x = 5,617,998.96/2,662.66
6. Step 6: Final answer
   x = 2,109.92