Finding the Fourth Proportional to 3,765.54, 5,640.12 and 2,300.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,765.54 : 5,640.12 = 2,300.25 : x
2. Step 2: Convert to fraction form
   3,765.54/5,640.12 = 2,300.25/x
3. Step 3: Cross multiply
   3,765.54x = 5,640.12 × 2,300.25
4. Step 4: Simplify right side
   3,765.54x = 12,973,686.03
5. Step 5: Solve for x
   x = 12,973,686.03/3,765.54
6. Step 6: Final answer
   x = 3,445.37