Finding the Fourth Proportional to 2,420.72, 3,340.66 and 1,713.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.72 : 3,340.66 = 1,713.82 : x
2. Step 2: Convert to fraction form
   2,420.72/3,340.66 = 1,713.82/x
3. Step 3: Cross multiply
   2,420.72x = 3,340.66 × 1,713.82
4. Step 4: Simplify right side
   2,420.72x = 5,725,289.92
5. Step 5: Solve for x
   x = 5,725,289.92/2,420.72
6. Step 6: Final answer
   x = 2,365.12