Finding the Fourth Proportional to 2,327.36, 3,211.74 and 1,279.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,327.36 : 3,211.74 = 1,279.40 : x
2. Step 2: Convert to fraction form
   2,327.36/3,211.74 = 1,279.40/x
3. Step 3: Cross multiply
   2,327.36x = 3,211.74 × 1,279.40
4. Step 4: Simplify right side
   2,327.36x = 4,109,084.10
5. Step 5: Solve for x
   x = 4,109,084.10/2,327.36
6. Step 6: Final answer
   x = 1,765.56