Finding the Fourth Proportional to 2,510.51, 3,464.18 and 1,391.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.51 : 3,464.18 = 1,391.29 : x
2. Step 2: Convert to fraction form
   2,510.51/3,464.18 = 1,391.29/x
3. Step 3: Cross multiply
   2,510.51x = 3,464.18 × 1,391.29
4. Step 4: Simplify right side
   2,510.51x = 4,819,695.90
5. Step 5: Solve for x
   x = 4,819,695.90/2,510.51
6. Step 6: Final answer
   x = 1,919.81