Finding the Fourth Proportional to 2,404.28, 3,604.80 and 1,307.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.28 : 3,604.80 = 1,307.60 : x
2. Step 2: Convert to fraction form
   2,404.28/3,604.80 = 1,307.60/x
3. Step 3: Cross multiply
   2,404.28x = 3,604.80 × 1,307.60
4. Step 4: Simplify right side
   2,404.28x = 4,713,636.48
5. Step 5: Solve for x
   x = 4,713,636.48/2,404.28
6. Step 6: Final answer
   x = 1,960.52