Finding the Fourth Proportional to 2,425.74, 3,638.59 and 1,603.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.74 : 3,638.59 = 1,603.83 : x
2. Step 2: Convert to fraction form
   2,425.74/3,638.59 = 1,603.83/x
3. Step 3: Cross multiply
   2,425.74x = 3,638.59 × 1,603.83
4. Step 4: Simplify right side
   2,425.74x = 5,835,679.80
5. Step 5: Solve for x
   x = 5,835,679.80/2,425.74
6. Step 6: Final answer
   x = 2,405.73