Finding the Fourth Proportional to 2,425.60, 3,629.76 and 1,394.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.60 : 3,629.76 = 1,394.56 : x
2. Step 2: Convert to fraction form
   2,425.60/3,629.76 = 1,394.56/x
3. Step 3: Cross multiply
   2,425.60x = 3,629.76 × 1,394.56
4. Step 4: Simplify right side
   2,425.60x = 5,061,918.11
5. Step 5: Solve for x
   x = 5,061,918.11/2,425.60
6. Step 6: Final answer
   x = 2,086.87