Finding the Fourth Proportional to 2,938.56, 4,056.96 and 1,760

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.56 : 4,056.96 = 1,760 : x
2. Step 2: Convert to fraction form
   2,938.56/4,056.96 = 1,760/x
3. Step 3: Cross multiply
   2,938.56x = 4,056.96 × 1,760
4. Step 4: Simplify right side
   2,938.56x = 7,140,249.60
5. Step 5: Solve for x
   x = 7,140,249.60/2,938.56
6. Step 6: Final answer
   x = 2,429.85