Finding the Fourth Proportional to 2,434.05, 3,359.03 and 1,386.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.05 : 3,359.03 = 1,386.09 : x
2. Step 2: Convert to fraction form
   2,434.05/3,359.03 = 1,386.09/x
3. Step 3: Cross multiply
   2,434.05x = 3,359.03 × 1,386.09
4. Step 4: Simplify right side
   2,434.05x = 4,655,910.96
5. Step 5: Solve for x
   x = 4,655,910.96/2,434.05
6. Step 6: Final answer
   x = 1,912.82