Finding the Fourth Proportional to 5,174.18, 7,758.89 and 1,663.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,174.18 : 7,758.89 = 1,663.54 : x
2. Step 2: Convert to fraction form
   5,174.18/7,758.89 = 1,663.54/x
3. Step 3: Cross multiply
   5,174.18x = 7,758.89 × 1,663.54
4. Step 4: Simplify right side
   5,174.18x = 12,907,202.39
5. Step 5: Solve for x
   x = 12,907,202.39/5,174.18
6. Step 6: Final answer
   x = 2,494.54