Finding the Fourth Proportional to 2,145.08, 2,960.59 and 1,260.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.08 : 2,960.59 = 1,260.92 : x
2. Step 2: Convert to fraction form
   2,145.08/2,960.59 = 1,260.92/x
3. Step 3: Cross multiply
   2,145.08x = 2,960.59 × 1,260.92
4. Step 4: Simplify right side
   2,145.08x = 3,733,071.39
5. Step 5: Solve for x
   x = 3,733,071.39/2,145.08
6. Step 6: Final answer
   x = 1,740.30