Finding the Fourth Proportional to 3,980.80, 5,493.12 and 2,301.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.80 : 5,493.12 = 2,301.52 : x
2. Step 2: Convert to fraction form
   3,980.80/5,493.12 = 2,301.52/x
3. Step 3: Cross multiply
   3,980.80x = 5,493.12 × 2,301.52
4. Step 4: Simplify right side
   3,980.80x = 12,642,525.54
5. Step 5: Solve for x
   x = 12,642,525.54/3,980.80
6. Step 6: Final answer
   x = 3,175.88