Finding the Fourth Proportional to 2,479.76, 3,401.74 and 2,330.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.76 : 3,401.74 = 2,330.72 : x
2. Step 2: Convert to fraction form
   2,479.76/3,401.74 = 2,330.72/x
3. Step 3: Cross multiply
   2,479.76x = 3,401.74 × 2,330.72
4. Step 4: Simplify right side
   2,479.76x = 7,928,503.45
5. Step 5: Solve for x
   x = 7,928,503.45/2,479.76
6. Step 6: Final answer
   x = 3,197.29