Finding the Fourth Proportional to 2,145.36, 2,960.47 and 1,348.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.36 : 2,960.47 = 1,348.83 : x
2. Step 2: Convert to fraction form
   2,145.36/2,960.47 = 1,348.83/x
3. Step 3: Cross multiply
   2,145.36x = 2,960.47 × 1,348.83
4. Step 4: Simplify right side
   2,145.36x = 3,993,170.75
5. Step 5: Solve for x
   x = 3,993,170.75/2,145.36
6. Step 6: Final answer
   x = 1,861.31