Finding the Fourth Proportional to 4,978.26, 7,469.24 and 2,379.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.26 : 7,469.24 = 2,379.42 : x
2. Step 2: Convert to fraction form
   4,978.26/7,469.24 = 2,379.42/x
3. Step 3: Cross multiply
   4,978.26x = 7,469.24 × 2,379.42
4. Step 4: Simplify right side
   4,978.26x = 17,772,447.14
5. Step 5: Solve for x
   x = 17,772,447.14/4,978.26
6. Step 6: Final answer
   x = 3,570.01