Finding the Fourth Proportional to 2,510.56, 3,464.71 and 1,391.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.56 : 3,464.71 = 1,391.63 : x
2. Step 2: Convert to fraction form
   2,510.56/3,464.71 = 1,391.63/x
3. Step 3: Cross multiply
   2,510.56x = 3,464.71 × 1,391.63
4. Step 4: Simplify right side
   2,510.56x = 4,821,594.38
5. Step 5: Solve for x
   x = 4,821,594.38/2,510.56
6. Step 6: Final answer
   x = 1,920.53