Finding the Fourth Proportional to 2,187.34, 3,018.81 and 1,255.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.34 : 3,018.81 = 1,255.84 : x
2. Step 2: Convert to fraction form
   2,187.34/3,018.81 = 1,255.84/x
3. Step 3: Cross multiply
   2,187.34x = 3,018.81 × 1,255.84
4. Step 4: Simplify right side
   2,187.34x = 3,791,142.35
5. Step 5: Solve for x
   x = 3,791,142.35/2,187.34
6. Step 6: Final answer
   x = 1,733.22