Finding the Fourth Proportional to 3,607.43, 4,978.49 and 2,281.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.43 : 4,978.49 = 2,281.05 : x
2. Step 2: Convert to fraction form
   3,607.43/4,978.49 = 2,281.05/x
3. Step 3: Cross multiply
   3,607.43x = 4,978.49 × 2,281.05
4. Step 4: Simplify right side
   3,607.43x = 11,356,173.21
5. Step 5: Solve for x
   x = 11,356,173.21/3,607.43
6. Step 6: Final answer
   x = 3,148.00