Finding the Fourth Proportional to 2,434.57, 3,359.71 and 1,315.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.57 : 3,359.71 = 1,315.51 : x
2. Step 2: Convert to fraction form
   2,434.57/3,359.71 = 1,315.51/x
3. Step 3: Cross multiply
   2,434.57x = 3,359.71 × 1,315.51
4. Step 4: Simplify right side
   2,434.57x = 4,419,728.81
5. Step 5: Solve for x
   x = 4,419,728.81/2,434.57
6. Step 6: Final answer
   x = 1,815.40