Finding the Fourth Proportional to 3,535.47, 5,298.19 and 2,603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,535.47 : 5,298.19 = 2,603.72 : x
2. Step 2: Convert to fraction form
   3,535.47/5,298.19 = 2,603.72/x
3. Step 3: Cross multiply
   3,535.47x = 5,298.19 × 2,603.72
4. Step 4: Simplify right side
   3,535.47x = 13,795,003.27
5. Step 5: Solve for x
   x = 13,795,003.27/3,535.47
6. Step 6: Final answer
   x = 3,901.89