Finding the Fourth Proportional to 2,420.69, 3,340.71 and 1,372.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.69 : 3,340.71 = 1,372.82 : x
2. Step 2: Convert to fraction form
   2,420.69/3,340.71 = 1,372.82/x
3. Step 3: Cross multiply
   2,420.69x = 3,340.71 × 1,372.82
4. Step 4: Simplify right side
   2,420.69x = 4,586,176.80
5. Step 5: Solve for x
   x = 4,586,176.80/2,420.69
6. Step 6: Final answer
   x = 1,894.58