Finding the Fourth Proportional to 3,603.60, 4,973.46 and 2,112.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,603.60 : 4,973.46 = 2,112.12 : x
2. Step 2: Convert to fraction form
   3,603.60/4,973.46 = 2,112.12/x
3. Step 3: Cross multiply
   3,603.60x = 4,973.46 × 2,112.12
4. Step 4: Simplify right side
   3,603.60x = 10,504,544.34
5. Step 5: Solve for x
   x = 10,504,544.34/3,603.60
6. Step 6: Final answer
   x = 2,915.01