Finding the Fourth Proportional to 2,071.76, 2,859.31 and 1,408.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.76 : 2,859.31 = 1,408.83 : x
2. Step 2: Convert to fraction form
   2,071.76/2,859.31 = 1,408.83/x
3. Step 3: Cross multiply
   2,071.76x = 2,859.31 × 1,408.83
4. Step 4: Simplify right side
   2,071.76x = 4,028,274.73
5. Step 5: Solve for x
   x = 4,028,274.73/2,071.76
6. Step 6: Final answer
   x = 1,944.37