Finding the Fourth Proportional to 2,758.46, 3,805.92 and 1,918.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.46 : 3,805.92 = 1,918.22 : x
2. Step 2: Convert to fraction form
   2,758.46/3,805.92 = 1,918.22/x
3. Step 3: Cross multiply
   2,758.46x = 3,805.92 × 1,918.22
4. Step 4: Simplify right side
   2,758.46x = 7,300,591.86
5. Step 5: Solve for x
   x = 7,300,591.86/2,758.46
6. Step 6: Final answer
   x = 2,646.62