Finding the Fourth Proportional to 2,184.92, 3,015.30 and 1,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.92 : 3,015.30 = 1,240.72 : x
2. Step 2: Convert to fraction form
   2,184.92/3,015.30 = 1,240.72/x
3. Step 3: Cross multiply
   2,184.92x = 3,015.30 × 1,240.72
4. Step 4: Simplify right side
   2,184.92x = 3,741,143.02
5. Step 5: Solve for x
   x = 3,741,143.02/2,184.92
6. Step 6: Final answer
   x = 1,712.26