Finding the Fourth Proportional to 2,269.35, 3,131.17 and 1,738.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.35 : 3,131.17 = 1,738.78 : x
2. Step 2: Convert to fraction form
   2,269.35/3,131.17 = 1,738.78/x
3. Step 3: Cross multiply
   2,269.35x = 3,131.17 × 1,738.78
4. Step 4: Simplify right side
   2,269.35x = 5,444,410.45
5. Step 5: Solve for x
   x = 5,444,410.45/2,269.35
6. Step 6: Final answer
   x = 2,399.10