Finding the Fourth Proportional to 2,380.41, 3,568.16 and 994.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.41 : 3,568.16 = 994.55 : x
2. Step 2: Convert to fraction form
   2,380.41/3,568.16 = 994.55/x
3. Step 3: Cross multiply
   2,380.41x = 3,568.16 × 994.55
4. Step 4: Simplify right side
   2,380.41x = 3,548,708.56
5. Step 5: Solve for x
   x = 3,548,708.56/2,380.41
6. Step 6: Final answer
   x = 1,490.80