Finding the Fourth Proportional to 2,178.38, 3,268.05 and 1,023.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.38 : 3,268.05 = 1,023.50 : x
2. Step 2: Convert to fraction form
   2,178.38/3,268.05 = 1,023.50/x
3. Step 3: Cross multiply
   2,178.38x = 3,268.05 × 1,023.50
4. Step 4: Simplify right side
   2,178.38x = 3,344,849.18
5. Step 5: Solve for x
   x = 3,344,849.18/2,178.38
6. Step 6: Final answer
   x = 1,535.48