Finding the Fourth Proportional to 2,250.84, 3,105.86 and 1,256.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.84 : 3,105.86 = 1,256.07 : x
2. Step 2: Convert to fraction form
   2,250.84/3,105.86 = 1,256.07/x
3. Step 3: Cross multiply
   2,250.84x = 3,105.86 × 1,256.07
4. Step 4: Simplify right side
   2,250.84x = 3,901,171.29
5. Step 5: Solve for x
   x = 3,901,171.29/2,250.84
6. Step 6: Final answer
   x = 1,733.21