Finding the Fourth Proportional to 3,564.67, 4,919.88 and 2,148.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,564.67 : 4,919.88 = 2,148.61 : x
2. Step 2: Convert to fraction form
   3,564.67/4,919.88 = 2,148.61/x
3. Step 3: Cross multiply
   3,564.67x = 4,919.88 × 2,148.61
4. Step 4: Simplify right side
   3,564.67x = 10,570,903.37
5. Step 5: Solve for x
   x = 10,570,903.37/3,564.67
6. Step 6: Final answer
   x = 2,965.46