Finding the Fourth Proportional to 2,222.72, 3,338.40 and 1,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.72 : 3,338.40 = 1,358.72 : x
2. Step 2: Convert to fraction form
   2,222.72/3,338.40 = 1,358.72/x
3. Step 3: Cross multiply
   2,222.72x = 3,338.40 × 1,358.72
4. Step 4: Simplify right side
   2,222.72x = 4,535,950.85
5. Step 5: Solve for x
   x = 4,535,950.85/2,222.72
6. Step 6: Final answer
   x = 2,040.72