Finding the Fourth Proportional to 2,145.77, 2,960.68 and 1,359.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.77 : 2,960.68 = 1,359.37 : x
2. Step 2: Convert to fraction form
   2,145.77/2,960.68 = 1,359.37/x
3. Step 3: Cross multiply
   2,145.77x = 2,960.68 × 1,359.37
4. Step 4: Simplify right side
   2,145.77x = 4,024,659.57
5. Step 5: Solve for x
   x = 4,024,659.57/2,145.77
6. Step 6: Final answer
   x = 1,875.62