Finding the Fourth Proportional to 6,434.56, 8,880.56 and 3,640

Step by Step Solution

1. Step 1: Write the proportion equation
   6,434.56 : 8,880.56 = 3,640 : x
2. Step 2: Convert to fraction form
   6,434.56/8,880.56 = 3,640/x
3. Step 3: Cross multiply
   6,434.56x = 8,880.56 × 3,640
4. Step 4: Simplify right side
   6,434.56x = 32,325,238.40
5. Step 5: Solve for x
   x = 32,325,238.40/6,434.56
6. Step 6: Final answer
   x = 5,023.69