Finding the Fourth Proportional to 2,738.48, 3,778.68 and 1,559.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.48 : 3,778.68 = 1,559.40 : x
2. Step 2: Convert to fraction form
   2,738.48/3,778.68 = 1,559.40/x
3. Step 3: Cross multiply
   2,738.48x = 3,778.68 × 1,559.40
4. Step 4: Simplify right side
   2,738.48x = 5,892,473.59
5. Step 5: Solve for x
   x = 5,892,473.59/2,738.48
6. Step 6: Final answer
   x = 2,151.73