Finding the Fourth Proportional to 5,367.85, 7,408.06 and 2,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,367.85 : 7,408.06 = 2,978.06 : x
2. Step 2: Convert to fraction form
   5,367.85/7,408.06 = 2,978.06/x
3. Step 3: Cross multiply
   5,367.85x = 7,408.06 × 2,978.06
4. Step 4: Simplify right side
   5,367.85x = 22,061,623.11
5. Step 5: Solve for x
   x = 22,061,623.11/5,367.85
6. Step 6: Final answer
   x = 4,109.96