Finding the Fourth Proportional to 2,327.81, 3,212.39 and 1,279.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,327.81 : 3,212.39 = 1,279.88 : x
2. Step 2: Convert to fraction form
   2,327.81/3,212.39 = 1,279.88/x
3. Step 3: Cross multiply
   2,327.81x = 3,212.39 × 1,279.88
4. Step 4: Simplify right side
   2,327.81x = 4,111,460.85
5. Step 5: Solve for x
   x = 4,111,460.85/2,327.81
6. Step 6: Final answer
   x = 1,766.23