Finding the Fourth Proportional to 2,236.51, 3,086.52 and 1,292.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,236.51 : 3,086.52 = 1,292.47 : x
2. Step 2: Convert to fraction form
   2,236.51/3,086.52 = 1,292.47/x
3. Step 3: Cross multiply
   2,236.51x = 3,086.52 × 1,292.47
4. Step 4: Simplify right side
   2,236.51x = 3,989,239.30
5. Step 5: Solve for x
   x = 3,989,239.30/2,236.51
6. Step 6: Final answer
   x = 1,783.69