Finding the Fourth Proportional to 4,978.36, 7,469.16 and 2,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.36 : 7,469.16 = 2,381.50 : x
2. Step 2: Convert to fraction form
   4,978.36/7,469.16 = 2,381.50/x
3. Step 3: Cross multiply
   4,978.36x = 7,469.16 × 2,381.50
4. Step 4: Simplify right side
   4,978.36x = 17,787,804.54
5. Step 5: Solve for x
   x = 17,787,804.54/4,978.36
6. Step 6: Final answer
   x = 3,573.02