Finding the Fourth Proportional to 2,510.48, 3,464.70 and 1,391.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.48 : 3,464.70 = 1,391.47 : x
2. Step 2: Convert to fraction form
   2,510.48/3,464.70 = 1,391.47/x
3. Step 3: Cross multiply
   2,510.48x = 3,464.70 × 1,391.47
4. Step 4: Simplify right side
   2,510.48x = 4,821,026.11
5. Step 5: Solve for x
   x = 4,821,026.11/2,510.48
6. Step 6: Final answer
   x = 1,920.36