Finding the Fourth Proportional to 2,036.16, 2,811.86 and 1,408.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,036.16 : 2,811.86 = 1,408.28 : x
2. Step 2: Convert to fraction form
   2,036.16/2,811.86 = 1,408.28/x
3. Step 3: Cross multiply
   2,036.16x = 2,811.86 × 1,408.28
4. Step 4: Simplify right side
   2,036.16x = 3,959,886.20
5. Step 5: Solve for x
   x = 3,959,886.20/2,036.16
6. Step 6: Final answer
   x = 1,944.78