Finding the Fourth Proportional to 2,019.15, 2,786.06 and 1,274.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.15 : 2,786.06 = 1,274.13 : x
2. Step 2: Convert to fraction form
   2,019.15/2,786.06 = 1,274.13/x
3. Step 3: Cross multiply
   2,019.15x = 2,786.06 × 1,274.13
4. Step 4: Simplify right side
   2,019.15x = 3,549,805.81
5. Step 5: Solve for x
   x = 3,549,805.81/2,019.15
6. Step 6: Final answer
   x = 1,758.07