Finding the Fourth Proportional to 2,553.12, 3,826.03 and 1,455.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.12 : 3,826.03 = 1,455.22 : x
2. Step 2: Convert to fraction form
   2,553.12/3,826.03 = 1,455.22/x
3. Step 3: Cross multiply
   2,553.12x = 3,826.03 × 1,455.22
4. Step 4: Simplify right side
   2,553.12x = 5,567,715.38
5. Step 5: Solve for x
   x = 5,567,715.38/2,553.12
6. Step 6: Final answer
   x = 2,180.75