Finding the Fourth Proportional to 2,010.65, 3,016.50 and 840.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.65 : 3,016.50 = 840.27 : x
2. Step 2: Convert to fraction form
   2,010.65/3,016.50 = 840.27/x
3. Step 3: Cross multiply
   2,010.65x = 3,016.50 × 840.27
4. Step 4: Simplify right side
   2,010.65x = 2,534,674.46
5. Step 5: Solve for x
   x = 2,534,674.46/2,010.65
6. Step 6: Final answer
   x = 1,260.63