Finding the Fourth Proportional to 2,510.67, 3,464.82 and 1,391.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.67 : 3,464.82 = 1,391.61 : x
2. Step 2: Convert to fraction form
   2,510.67/3,464.82 = 1,391.61/x
3. Step 3: Cross multiply
   2,510.67x = 3,464.82 × 1,391.61
4. Step 4: Simplify right side
   2,510.67x = 4,821,678.16
5. Step 5: Solve for x
   x = 4,821,678.16/2,510.67
6. Step 6: Final answer
   x = 1,920.47