Finding the Fourth Proportional to 2,334.42, 3,221.57 and 1,339.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,334.42 : 3,221.57 = 1,339.89 : x
2. Step 2: Convert to fraction form
   2,334.42/3,221.57 = 1,339.89/x
3. Step 3: Cross multiply
   2,334.42x = 3,221.57 × 1,339.89
4. Step 4: Simplify right side
   2,334.42x = 4,316,542.73
5. Step 5: Solve for x
   x = 4,316,542.73/2,334.42
6. Step 6: Final answer
   x = 1,849.09