Finding the Fourth Proportional to 3,912.04, 5,866.62 and 1,603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.04 : 5,866.62 = 1,603.72 : x
2. Step 2: Convert to fraction form
   3,912.04/5,866.62 = 1,603.72/x
3. Step 3: Cross multiply
   3,912.04x = 5,866.62 × 1,603.72
4. Step 4: Simplify right side
   3,912.04x = 9,408,415.83
5. Step 5: Solve for x
   x = 9,408,415.83/3,912.04
6. Step 6: Final answer
   x = 2,404.99