Finding the Fourth Proportional to 2,452.40, 3,680.40 and 1,478.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.40 : 3,680.40 = 1,478.96 : x
2. Step 2: Convert to fraction form
   2,452.40/3,680.40 = 1,478.96/x
3. Step 3: Cross multiply
   2,452.40x = 3,680.40 × 1,478.96
4. Step 4: Simplify right side
   2,452.40x = 5,443,164.38
5. Step 5: Solve for x
   x = 5,443,164.38/2,452.40
6. Step 6: Final answer
   x = 2,219.53