Finding the Fourth Proportional to 2,402.69, 3,603.96 and 1,309.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.69 : 3,603.96 = 1,309.19 : x
2. Step 2: Convert to fraction form
   2,402.69/3,603.96 = 1,309.19/x
3. Step 3: Cross multiply
   2,402.69x = 3,603.96 × 1,309.19
4. Step 4: Simplify right side
   2,402.69x = 4,718,250.37
5. Step 5: Solve for x
   x = 4,718,250.37/2,402.69
6. Step 6: Final answer
   x = 1,963.74