Finding the Fourth Proportional to 3,604.86, 4,974.68 and 2,112.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604.86 : 4,974.68 = 2,112.47 : x
2. Step 2: Convert to fraction form
   3,604.86/4,974.68 = 2,112.47/x
3. Step 3: Cross multiply
   3,604.86x = 4,974.68 × 2,112.47
4. Step 4: Simplify right side
   3,604.86x = 10,508,826.82
5. Step 5: Solve for x
   x = 10,508,826.82/3,604.86
6. Step 6: Final answer
   x = 2,915.18