Finding the Fourth Proportional to 2,758.15, 3,807.33 and 1,919.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.15 : 3,807.33 = 1,919.34 : x
2. Step 2: Convert to fraction form
   2,758.15/3,807.33 = 1,919.34/x
3. Step 3: Cross multiply
   2,758.15x = 3,807.33 × 1,919.34
4. Step 4: Simplify right side
   2,758.15x = 7,307,560.76
5. Step 5: Solve for x
   x = 7,307,560.76/2,758.15
6. Step 6: Final answer
   x = 2,649.44