Finding the Fourth Proportional to 2,019.48, 2,786.82 and 1,356.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.48 : 2,786.82 = 1,356.30 : x
2. Step 2: Convert to fraction form
   2,019.48/2,786.82 = 1,356.30/x
3. Step 3: Cross multiply
   2,019.48x = 2,786.82 × 1,356.30
4. Step 4: Simplify right side
   2,019.48x = 3,779,763.97
5. Step 5: Solve for x
   x = 3,779,763.97/2,019.48
6. Step 6: Final answer
   x = 1,871.65