Finding the Fourth Proportional to 2,425.89, 3,347.91 and 1,378.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.89 : 3,347.91 = 1,378.14 : x
2. Step 2: Convert to fraction form
   2,425.89/3,347.91 = 1,378.14/x
3. Step 3: Cross multiply
   2,425.89x = 3,347.91 × 1,378.14
4. Step 4: Simplify right side
   2,425.89x = 4,613,888.69
5. Step 5: Solve for x
   x = 4,613,888.69/2,425.89
6. Step 6: Final answer
   x = 1,901.94