Finding the Fourth Proportional to 2,425.41, 3,345.30 and 1,679.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.41 : 3,345.30 = 1,679.40 : x
2. Step 2: Convert to fraction form
   2,425.41/3,345.30 = 1,679.40/x
3. Step 3: Cross multiply
   2,425.41x = 3,345.30 × 1,679.40
4. Step 4: Simplify right side
   2,425.41x = 5,618,096.82
5. Step 5: Solve for x
   x = 5,618,096.82/2,425.41
6. Step 6: Final answer
   x = 2,316.35