Finding the Fourth Proportional to 3,673.74, 5,054.72 and 3,174.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,673.74 : 5,054.72 = 3,174.78 : x
2. Step 2: Convert to fraction form
   3,673.74/5,054.72 = 3,174.78/x
3. Step 3: Cross multiply
   3,673.74x = 5,054.72 × 3,174.78
4. Step 4: Simplify right side
   3,673.74x = 16,047,623.96
5. Step 5: Solve for x
   x = 16,047,623.96/3,673.74
6. Step 6: Final answer
   x = 4,368.20