Finding the Fourth Proportional to 3,599.64, 5,399.06 and 1,002.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,599.64 : 5,399.06 = 1,002.78 : x
2. Step 2: Convert to fraction form
   3,599.64/5,399.06 = 1,002.78/x
3. Step 3: Cross multiply
   3,599.64x = 5,399.06 × 1,002.78
4. Step 4: Simplify right side
   3,599.64x = 5,414,064.37
5. Step 5: Solve for x
   x = 5,414,064.37/3,599.64
6. Step 6: Final answer
   x = 1,504.06