Finding the Fourth Proportional to 3,912.06, 5,870.49 and 1,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.06 : 5,870.49 = 1,603.50 : x
2. Step 2: Convert to fraction form
   3,912.06/5,870.49 = 1,603.50/x
3. Step 3: Cross multiply
   3,912.06x = 5,870.49 × 1,603.50
4. Step 4: Simplify right side
   3,912.06x = 9,413,330.72
5. Step 5: Solve for x
   x = 9,413,330.72/3,912.06
6. Step 6: Final answer
   x = 2,406.23