Finding the Fourth Proportional to 3,820.10, 5,728.25 and 1,354.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.10 : 5,728.25 = 1,354.55 : x
2. Step 2: Convert to fraction form
   3,820.10/5,728.25 = 1,354.55/x
3. Step 3: Cross multiply
   3,820.10x = 5,728.25 × 1,354.55
4. Step 4: Simplify right side
   3,820.10x = 7,759,175.78
5. Step 5: Solve for x
   x = 7,759,175.78/3,820.10
6. Step 6: Final answer
   x = 2,031.15