Finding the Fourth Proportional to 2,510.71, 3,464.73 and 1,391.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.71 : 3,464.73 = 1,391.72 : x
2. Step 2: Convert to fraction form
   2,510.71/3,464.73 = 1,391.72/x
3. Step 3: Cross multiply
   2,510.71x = 3,464.73 × 1,391.72
4. Step 4: Simplify right side
   2,510.71x = 4,821,916.71
5. Step 5: Solve for x
   x = 4,821,916.71/2,510.71
6. Step 6: Final answer
   x = 1,920.54