Finding the Fourth Proportional to 2,434.68, 3,359.52 and 1,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.68 : 3,359.52 = 1,386.72 : x
2. Step 2: Convert to fraction form
   2,434.68/3,359.52 = 1,386.72/x
3. Step 3: Cross multiply
   2,434.68x = 3,359.52 × 1,386.72
4. Step 4: Simplify right side
   2,434.68x = 4,658,713.57
5. Step 5: Solve for x
   x = 4,658,713.57/2,434.68
6. Step 6: Final answer
   x = 1,913.48