Finding the Fourth Proportional to 2,717.18, 3,749.69 and 1,538.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.18 : 3,749.69 = 1,538.30 : x
2. Step 2: Convert to fraction form
   2,717.18/3,749.69 = 1,538.30/x
3. Step 3: Cross multiply
   2,717.18x = 3,749.69 × 1,538.30
4. Step 4: Simplify right side
   2,717.18x = 5,768,121.69
5. Step 5: Solve for x
   x = 5,768,121.69/2,717.18
6. Step 6: Final answer
   x = 2,122.84