Finding the Fourth Proportional to 2,479.42, 3,672.74 and 2,451.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.42 : 3,672.74 = 2,451.78 : x
2. Step 2: Convert to fraction form
   2,479.42/3,672.74 = 2,451.78/x
3. Step 3: Cross multiply
   2,479.42x = 3,672.74 × 2,451.78
4. Step 4: Simplify right side
   2,479.42x = 9,004,756.61
5. Step 5: Solve for x
   x = 9,004,756.61/2,479.42
6. Step 6: Final answer
   x = 3,631.80