Finding the Fourth Proportional to 6,406.16, 8,840.52 and 3,611.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,406.16 : 8,840.52 = 3,611.60 : x
2. Step 2: Convert to fraction form
   6,406.16/8,840.52 = 3,611.60/x
3. Step 3: Cross multiply
   6,406.16x = 8,840.52 × 3,611.60
4. Step 4: Simplify right side
   6,406.16x = 31,928,422.03
5. Step 5: Solve for x
   x = 31,928,422.03/6,406.16
6. Step 6: Final answer
   x = 4,984.02