Finding the Fourth Proportional to 3,749.32, 5,174.31 and 2,488.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,749.32 : 5,174.31 = 2,488.15 : x
2. Step 2: Convert to fraction form
   3,749.32/5,174.31 = 2,488.15/x
3. Step 3: Cross multiply
   3,749.32x = 5,174.31 × 2,488.15
4. Step 4: Simplify right side
   3,749.32x = 12,874,459.43
5. Step 5: Solve for x
   x = 12,874,459.43/3,749.32
6. Step 6: Final answer
   x = 3,433.81