Finding the Fourth Proportional to 2,187.84, 3,019.50 and 1,256.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.84 : 3,019.50 = 1,256.52 : x
2. Step 2: Convert to fraction form
   2,187.84/3,019.50 = 1,256.52/x
3. Step 3: Cross multiply
   2,187.84x = 3,019.50 × 1,256.52
4. Step 4: Simplify right side
   2,187.84x = 3,794,062.14
5. Step 5: Solve for x
   x = 3,794,062.14/2,187.84
6. Step 6: Final answer
   x = 1,734.16