Finding the Fourth Proportional to 2,434.51, 3,359.50 and 1,386.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.51 : 3,359.50 = 1,386.91 : x
2. Step 2: Convert to fraction form
   2,434.51/3,359.50 = 1,386.91/x
3. Step 3: Cross multiply
   2,434.51x = 3,359.50 × 1,386.91
4. Step 4: Simplify right side
   2,434.51x = 4,659,324.15
5. Step 5: Solve for x
   x = 4,659,324.15/2,434.51
6. Step 6: Final answer
   x = 1,913.87