Finding the Fourth Proportional to 2,455.40, 3,684.51 and 994.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.40 : 3,684.51 = 994.16 : x
2. Step 2: Convert to fraction form
   2,455.40/3,684.51 = 994.16/x
3. Step 3: Cross multiply
   2,455.40x = 3,684.51 × 994.16
4. Step 4: Simplify right side
   2,455.40x = 3,662,974.04
5. Step 5: Solve for x
   x = 3,662,974.04/2,455.40
6. Step 6: Final answer
   x = 1,491.81