Finding the Fourth Proportional to 3,994.44, 5,513.31 and 2,315.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.44 : 5,513.31 = 2,315.58 : x
2. Step 2: Convert to fraction form
   3,994.44/5,513.31 = 2,315.58/x
3. Step 3: Cross multiply
   3,994.44x = 5,513.31 × 2,315.58
4. Step 4: Simplify right side
   3,994.44x = 12,766,510.37
5. Step 5: Solve for x
   x = 12,766,510.37/3,994.44
6. Step 6: Final answer
   x = 3,196.07