Finding the Fourth Proportional to 2,186.84, 3,018.12 and 1,255.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.84 : 3,018.12 = 1,255.34 : x
2. Step 2: Convert to fraction form
   2,186.84/3,018.12 = 1,255.34/x
3. Step 3: Cross multiply
   2,186.84x = 3,018.12 × 1,255.34
4. Step 4: Simplify right side
   2,186.84x = 3,788,766.76
5. Step 5: Solve for x
   x = 3,788,766.76/2,186.84
6. Step 6: Final answer
   x = 1,732.53