Finding the Fourth Proportional to 2,628.05, 3,944.80 and 1,935.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.05 : 3,944.80 = 1,935.50 : x
2. Step 2: Convert to fraction form
   2,628.05/3,944.80 = 1,935.50/x
3. Step 3: Cross multiply
   2,628.05x = 3,944.80 × 1,935.50
4. Step 4: Simplify right side
   2,628.05x = 7,635,143.10
5. Step 5: Solve for x
   x = 7,635,143.10/2,628.05
6. Step 6: Final answer
   x = 2,905.26