Finding the Fourth Proportional to 2,506.02, 3,456.99 and 1,665.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,506.02 : 3,456.99 = 1,665.78 : x
2. Step 2: Convert to fraction form
   2,506.02/3,456.99 = 1,665.78/x
3. Step 3: Cross multiply
   2,506.02x = 3,456.99 × 1,665.78
4. Step 4: Simplify right side
   2,506.02x = 5,758,584.80
5. Step 5: Solve for x
   x = 5,758,584.80/2,506.02
6. Step 6: Final answer
   x = 2,297.90