Finding the Fourth Proportional to 3,649.89, 5,475.56 and 1,309.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,649.89 : 5,475.56 = 1,309.26 : x
2. Step 2: Convert to fraction form
   3,649.89/5,475.56 = 1,309.26/x
3. Step 3: Cross multiply
   3,649.89x = 5,475.56 × 1,309.26
4. Step 4: Simplify right side
   3,649.89x = 7,168,931.69
5. Step 5: Solve for x
   x = 7,168,931.69/3,649.89
6. Step 6: Final answer
   x = 1,964.15