Finding the Fourth Proportional to 2,093.34, 3,139.28 and 843.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.34 : 3,139.28 = 843.56 : x
2. Step 2: Convert to fraction form
   2,093.34/3,139.28 = 843.56/x
3. Step 3: Cross multiply
   2,093.34x = 3,139.28 × 843.56
4. Step 4: Simplify right side
   2,093.34x = 2,648,173.70
5. Step 5: Solve for x
   x = 2,648,173.70/2,093.34
6. Step 6: Final answer
   x = 1,265.05