Finding the Fourth Proportional to 2,425.38, 3,347.55 and 1,430.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.38 : 3,347.55 = 1,430.30 : x
2. Step 2: Convert to fraction form
   2,425.38/3,347.55 = 1,430.30/x
3. Step 3: Cross multiply
   2,425.38x = 3,347.55 × 1,430.30
4. Step 4: Simplify right side
   2,425.38x = 4,787,984.03
5. Step 5: Solve for x
   x = 4,787,984.03/2,425.38
6. Step 6: Final answer
   x = 1,974.12