Finding the Fourth Proportional to 2,300.24, 3,173.27 and 1,355.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.24 : 3,173.27 = 1,355.39 : x
2. Step 2: Convert to fraction form
   2,300.24/3,173.27 = 1,355.39/x
3. Step 3: Cross multiply
   2,300.24x = 3,173.27 × 1,355.39
4. Step 4: Simplify right side
   2,300.24x = 4,301,009.36
5. Step 5: Solve for x
   x = 4,301,009.36/2,300.24
6. Step 6: Final answer
   x = 1,869.81