Finding the Fourth Proportional to 2,434.69, 3,359.68 and 1,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.69 : 3,359.68 = 1,386.75 : x
2. Step 2: Convert to fraction form
   2,434.69/3,359.68 = 1,386.75/x
3. Step 3: Cross multiply
   2,434.69x = 3,359.68 × 1,386.75
4. Step 4: Simplify right side
   2,434.69x = 4,659,045.37
5. Step 5: Solve for x
   x = 4,659,045.37/2,434.69
6. Step 6: Final answer
   x = 1,913.61