Finding the Fourth Proportional to 2,221.72, 3,065.82 and 1,337.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.72 : 3,065.82 = 1,337.92 : x
2. Step 2: Convert to fraction form
   2,221.72/3,065.82 = 1,337.92/x
3. Step 3: Cross multiply
   2,221.72x = 3,065.82 × 1,337.92
4. Step 4: Simplify right side
   2,221.72x = 4,101,821.89
5. Step 5: Solve for x
   x = 4,101,821.89/2,221.72
6. Step 6: Final answer
   x = 1,846.24