Finding the Fourth Proportional to 2,036.83, 2,809.28 and 1,408.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,036.83 : 2,809.28 = 1,408.40 : x
2. Step 2: Convert to fraction form
   2,036.83/2,809.28 = 1,408.40/x
3. Step 3: Cross multiply
   2,036.83x = 2,809.28 × 1,408.40
4. Step 4: Simplify right side
   2,036.83x = 3,956,600.50
5. Step 5: Solve for x
   x = 3,956,600.50/2,036.83
6. Step 6: Final answer
   x = 1,942.53