Finding the Fourth Proportional to 3,603.47, 4,974.02 and 2,111.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.47 : 4,974.02 = 2,111.86 : x
2. Step 2: Convert to fraction form
   3,603.47/4,974.02 = 2,111.86/x
3. Step 3: Cross multiply
   3,603.47x = 4,974.02 × 2,111.86
4. Step 4: Simplify right side
   3,603.47x = 10,504,433.88
5. Step 5: Solve for x
   x = 10,504,433.88/3,603.47
6. Step 6: Final answer
   x = 2,915.09