Finding the Fourth Proportional to 3,452.90, 5,174.72 and 1,890.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452.90 : 5,174.72 = 1,890.54 : x
2. Step 2: Convert to fraction form
   3,452.90/5,174.72 = 1,890.54/x
3. Step 3: Cross multiply
   3,452.90x = 5,174.72 × 1,890.54
4. Step 4: Simplify right side
   3,452.90x = 9,783,012.79
5. Step 5: Solve for x
   x = 9,783,012.79/3,452.90
6. Step 6: Final answer
   x = 2,833.28