Finding the Fourth Proportional to 3,980.40, 5,493.46 and 2,301.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.40 : 5,493.46 = 2,301.48 : x
2. Step 2: Convert to fraction form
   3,980.40/5,493.46 = 2,301.48/x
3. Step 3: Cross multiply
   3,980.40x = 5,493.46 × 2,301.48
4. Step 4: Simplify right side
   3,980.40x = 12,643,109.02
5. Step 5: Solve for x
   x = 12,643,109.02/3,980.40
6. Step 6: Final answer
   x = 3,176.34