Finding the Fourth Proportional to 3,577.10, 5,361.86 and 2,420.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,577.10 : 5,361.86 = 2,420.42 : x
2. Step 2: Convert to fraction form
   3,577.10/5,361.86 = 2,420.42/x
3. Step 3: Cross multiply
   3,577.10x = 5,361.86 × 2,420.42
4. Step 4: Simplify right side
   3,577.10x = 12,977,932.42
5. Step 5: Solve for x
   x = 12,977,932.42/3,577.10
6. Step 6: Final answer
   x = 3,628.06