Finding the Fourth Proportional to 2,603.07, 3,901.23 and 1,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,603.07 : 3,901.23 = 1,984.50 : x
2. Step 2: Convert to fraction form
   2,603.07/3,901.23 = 1,984.50/x
3. Step 3: Cross multiply
   2,603.07x = 3,901.23 × 1,984.50
4. Step 4: Simplify right side
   2,603.07x = 7,741,990.94
5. Step 5: Solve for x
   x = 7,741,990.94/2,603.07
6. Step 6: Final answer
   x = 2,974.18