Finding the Fourth Proportional to 6,506.28, 8,978.64 and 3,522.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,506.28 : 8,978.64 = 3,522.08 : x
2. Step 2: Convert to fraction form
   6,506.28/8,978.64 = 3,522.08/x
3. Step 3: Cross multiply
   6,506.28x = 8,978.64 × 3,522.08
4. Step 4: Simplify right side
   6,506.28x = 31,623,443.48
5. Step 5: Solve for x
   x = 31,623,443.48/6,506.28
6. Step 6: Final answer
   x = 4,860.45