Finding the Fourth Proportional to 1,294.15, 1,939.61 and 1,019.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294.15 : 1,939.61 = 1,019.16 : x
2. Step 2: Convert to fraction form
   1,294.15/1,939.61 = 1,019.16/x
3. Step 3: Cross multiply
   1,294.15x = 1,939.61 × 1,019.16
4. Step 4: Simplify right side
   1,294.15x = 1,976,761.83
5. Step 5: Solve for x
   x = 1,976,761.83/1,294.15
6. Step 6: Final answer
   x = 1,527.46