Finding the Fourth Proportional to 1,936.51, 2,674.56 and 1,309.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,936.51 : 2,674.56 = 1,309.63 : x
2. Step 2: Convert to fraction form
   1,936.51/2,674.56 = 1,309.63/x
3. Step 3: Cross multiply
   1,936.51x = 2,674.56 × 1,309.63
4. Step 4: Simplify right side
   1,936.51x = 3,502,684.01
5. Step 5: Solve for x
   x = 3,502,684.01/1,936.51
6. Step 6: Final answer
   x = 1,808.76