Finding the Fourth Proportional to 2,740.70, 4,111.59 and 1,425.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,740.70 : 4,111.59 = 1,425.09 : x
2. Step 2: Convert to fraction form
   2,740.70/4,111.59 = 1,425.09/x
3. Step 3: Cross multiply
   2,740.70x = 4,111.59 × 1,425.09
4. Step 4: Simplify right side
   2,740.70x = 5,859,406.56
5. Step 5: Solve for x
   x = 5,859,406.56/2,740.70
6. Step 6: Final answer
   x = 2,137.92