Finding the Fourth Proportional to 2,738.52, 3,778.20 and 1,899

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.52 : 3,778.20 = 1,899 : x
2. Step 2: Convert to fraction form
   2,738.52/3,778.20 = 1,899/x
3. Step 3: Cross multiply
   2,738.52x = 3,778.20 × 1,899
4. Step 4: Simplify right side
   2,738.52x = 7,174,801.80
5. Step 5: Solve for x
   x = 7,174,801.80/2,738.52
6. Step 6: Final answer
   x = 2,619.96