Finding the Fourth Proportional to 3,607.38, 4,978.42 and 2,114.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.38 : 4,978.42 = 2,114.76 : x
2. Step 2: Convert to fraction form
   3,607.38/4,978.42 = 2,114.76/x
3. Step 3: Cross multiply
   3,607.38x = 4,978.42 × 2,114.76
4. Step 4: Simplify right side
   3,607.38x = 10,528,163.48
5. Step 5: Solve for x
   x = 10,528,163.48/3,607.38
6. Step 6: Final answer
   x = 2,918.51