Finding the Fourth Proportional to 2,309.16, 3,185.93 and 1,365.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.16 : 3,185.93 = 1,365.05 : x
2. Step 2: Convert to fraction form
   2,309.16/3,185.93 = 1,365.05/x
3. Step 3: Cross multiply
   2,309.16x = 3,185.93 × 1,365.05
4. Step 4: Simplify right side
   2,309.16x = 4,348,965.12
5. Step 5: Solve for x
   x = 4,348,965.12/2,309.16
6. Step 6: Final answer
   x = 1,883.36