Finding the Fourth Proportional to 2,660.02, 3,962.73 and 2,540.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.02 : 3,962.73 = 2,540.07 : x
2. Step 2: Convert to fraction form
   2,660.02/3,962.73 = 2,540.07/x
3. Step 3: Cross multiply
   2,660.02x = 3,962.73 × 2,540.07
4. Step 4: Simplify right side
   2,660.02x = 10,065,598.89
5. Step 5: Solve for x
   x = 10,065,598.89/2,660.02
6. Step 6: Final answer
   x = 3,784.04