Finding the Fourth Proportional to 2,270.56, 3,408.72 and 1,930.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.56 : 3,408.72 = 1,930.72 : x
2. Step 2: Convert to fraction form
   2,270.56/3,408.72 = 1,930.72/x
3. Step 3: Cross multiply
   2,270.56x = 3,408.72 × 1,930.72
4. Step 4: Simplify right side
   2,270.56x = 6,581,283.88
5. Step 5: Solve for x
   x = 6,581,283.88/2,270.56
6. Step 6: Final answer
   x = 2,898.53