Finding the Fourth Proportional to 3,749.58, 5,169.99 and 2,553.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,749.58 : 5,169.99 = 2,553.31 : x
2. Step 2: Convert to fraction form
   3,749.58/5,169.99 = 2,553.31/x
3. Step 3: Cross multiply
   3,749.58x = 5,169.99 × 2,553.31
4. Step 4: Simplify right side
   3,749.58x = 13,200,587.17
5. Step 5: Solve for x
   x = 13,200,587.17/3,749.58
6. Step 6: Final answer
   x = 3,520.55