Finding the Fourth Proportional to 2,665.46, 3,673.14 and 1,918.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.46 : 3,673.14 = 1,918.10 : x
2. Step 2: Convert to fraction form
   2,665.46/3,673.14 = 1,918.10/x
3. Step 3: Cross multiply
   2,665.46x = 3,673.14 × 1,918.10
4. Step 4: Simplify right side
   2,665.46x = 7,045,449.83
5. Step 5: Solve for x
   x = 7,045,449.83/2,665.46
6. Step 6: Final answer
   x = 2,643.24