Finding the Fourth Proportional to 3,976.55, 5,486.80 and 2,404.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.55 : 5,486.80 = 2,404.34 : x
2. Step 2: Convert to fraction form
   3,976.55/5,486.80 = 2,404.34/x
3. Step 3: Cross multiply
   3,976.55x = 5,486.80 × 2,404.34
4. Step 4: Simplify right side
   3,976.55x = 13,192,132.71
5. Step 5: Solve for x
   x = 13,192,132.71/3,976.55
6. Step 6: Final answer
   x = 3,317.48