Finding the Fourth Proportional to 2,822.07, 4,212.91 and 2,453.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,822.07 : 4,212.91 = 2,453.12 : x
2. Step 2: Convert to fraction form
   2,822.07/4,212.91 = 2,453.12/x
3. Step 3: Cross multiply
   2,822.07x = 4,212.91 × 2,453.12
4. Step 4: Simplify right side
   2,822.07x = 10,334,773.78
5. Step 5: Solve for x
   x = 10,334,773.78/2,822.07
6. Step 6: Final answer
   x = 3,662.13