Finding the Fourth Proportional to 3,607.33, 4,978.13 and 2,115.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.33 : 4,978.13 = 2,115.27 : x
2. Step 2: Convert to fraction form
   3,607.33/4,978.13 = 2,115.27/x
3. Step 3: Cross multiply
   3,607.33x = 4,978.13 × 2,115.27
4. Step 4: Simplify right side
   3,607.33x = 10,530,076.37
5. Step 5: Solve for x
   x = 10,530,076.37/3,607.33
6. Step 6: Final answer
   x = 2,919.08