Finding the Fourth Proportional to 2,662.47, 3,674.56 and 1,918.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.47 : 3,674.56 = 1,918.89 : x
2. Step 2: Convert to fraction form
   2,662.47/3,674.56 = 1,918.89/x
3. Step 3: Cross multiply
   2,662.47x = 3,674.56 × 1,918.89
4. Step 4: Simplify right side
   2,662.47x = 7,051,076.44
5. Step 5: Solve for x
   x = 7,051,076.44/2,662.47
6. Step 6: Final answer
   x = 2,648.32