Finding the Fourth Proportional to 2,662.80, 4,002.84 and 2,649.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.80 : 4,002.84 = 2,649.84 : x
2. Step 2: Convert to fraction form
   2,662.80/4,002.84 = 2,649.84/x
3. Step 3: Cross multiply
   2,662.80x = 4,002.84 × 2,649.84
4. Step 4: Simplify right side
   2,662.80x = 10,606,885.55
5. Step 5: Solve for x
   x = 10,606,885.55/2,662.80
6. Step 6: Final answer
   x = 3,983.36