Finding the Fourth Proportional to 8,980.60, 13,471.60 and 2,406.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,980.60 : 13,471.60 = 2,406.72 : x
2. Step 2: Convert to fraction form
   8,980.60/13,471.60 = 2,406.72/x
3. Step 3: Cross multiply
   8,980.60x = 13,471.60 × 2,406.72
4. Step 4: Simplify right side
   8,980.60x = 32,422,369.15
5. Step 5: Solve for x
   x = 32,422,369.15/8,980.60
6. Step 6: Final answer
   x = 3,610.27