Finding the Fourth Proportional to 2,026.38, 3,039.48 and 840.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,026.38 : 3,039.48 = 840.27 : x
2. Step 2: Convert to fraction form
   2,026.38/3,039.48 = 840.27/x
3. Step 3: Cross multiply
   2,026.38x = 3,039.48 × 840.27
4. Step 4: Simplify right side
   2,026.38x = 2,553,983.86
5. Step 5: Solve for x
   x = 2,553,983.86/2,026.38
6. Step 6: Final answer
   x = 1,260.37