Finding the Fourth Proportional to 2,738.82, 3,778.98 and 1,898.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.82 : 3,778.98 = 1,898.22 : x
2. Step 2: Convert to fraction form
   2,738.82/3,778.98 = 1,898.22/x
3. Step 3: Cross multiply
   2,738.82x = 3,778.98 × 1,898.22
4. Step 4: Simplify right side
   2,738.82x = 7,173,335.42
5. Step 5: Solve for x
   x = 7,173,335.42/2,738.82
6. Step 6: Final answer
   x = 2,619.13