Finding the Fourth Proportional to 3,707.28, 5,100.84 and 3,603.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707.28 : 5,100.84 = 3,603.78 : x
2. Step 2: Convert to fraction form
   3,707.28/5,100.84 = 3,603.78/x
3. Step 3: Cross multiply
   3,707.28x = 5,100.84 × 3,603.78
4. Step 4: Simplify right side
   3,707.28x = 18,382,305.18
5. Step 5: Solve for x
   x = 18,382,305.18/3,707.28
6. Step 6: Final answer
   x = 4,958.43