Finding the Fourth Proportional to 3,100.56, 4,278.72 and 1,703.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.56 : 4,278.72 = 1,703.28 : x
2. Step 2: Convert to fraction form
   3,100.56/4,278.72 = 1,703.28/x
3. Step 3: Cross multiply
   3,100.56x = 4,278.72 × 1,703.28
4. Step 4: Simplify right side
   3,100.56x = 7,287,858.20
5. Step 5: Solve for x
   x = 7,287,858.20/3,100.56
6. Step 6: Final answer
   x = 2,350.50