Finding the Fourth Proportional to 2,717.30, 3,748.53 and 2,118.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.30 : 3,748.53 = 2,118.71 : x
2. Step 2: Convert to fraction form
   2,717.30/3,748.53 = 2,118.71/x
3. Step 3: Cross multiply
   2,717.30x = 3,748.53 × 2,118.71
4. Step 4: Simplify right side
   2,717.30x = 7,942,057.37
5. Step 5: Solve for x
   x = 7,942,057.37/2,717.30
6. Step 6: Final answer
   x = 2,922.77