Finding the Fourth Proportional to 2,797.20, 3,860.23 and 1,538.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,797.20 : 3,860.23 = 1,538.35 : x
2. Step 2: Convert to fraction form
   2,797.20/3,860.23 = 1,538.35/x
3. Step 3: Cross multiply
   2,797.20x = 3,860.23 × 1,538.35
4. Step 4: Simplify right side
   2,797.20x = 5,938,389.39
5. Step 5: Solve for x
   x = 5,938,389.39/2,797.20
6. Step 6: Final answer
   x = 2,122.98