Finding the Fourth Proportional to 3,380.76, 5,058.38 and 1,994.85

Step by Step Solution

1. Step 1: Write the proportion equation
   3,380.76 : 5,058.38 = 1,994.85 : x
2. Step 2: Convert to fraction form
   3,380.76/5,058.38 = 1,994.85/x
3. Step 3: Cross multiply
   3,380.76x = 5,058.38 × 1,994.85
4. Step 4: Simplify right side
   3,380.76x = 10,090,714.33
5. Step 5: Solve for x
   x = 10,090,714.33/3,380.76
6. Step 6: Final answer
   x = 2,984.75