Finding the Fourth Proportional to 2,145.92, 2,961.72 and 1,250.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.92 : 2,961.72 = 1,250.18 : x
2. Step 2: Convert to fraction form
   2,145.92/2,961.72 = 1,250.18/x
3. Step 3: Cross multiply
   2,145.92x = 2,961.72 × 1,250.18
4. Step 4: Simplify right side
   2,145.92x = 3,702,683.11
5. Step 5: Solve for x
   x = 3,702,683.11/2,145.92
6. Step 6: Final answer
   x = 1,725.45