Finding the Fourth Proportional to 1,718.72, 2,581.40 and 1,472.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,718.72 : 2,581.40 = 1,472.48 : x
2. Step 2: Convert to fraction form
   1,718.72/2,581.40 = 1,472.48/x
3. Step 3: Cross multiply
   1,718.72x = 2,581.40 × 1,472.48
4. Step 4: Simplify right side
   1,718.72x = 3,801,059.87
5. Step 5: Solve for x
   x = 3,801,059.87/1,718.72
6. Step 6: Final answer
   x = 2,211.56