Finding the Fourth Proportional to 2,250.91, 3,106.52 and 1,256.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.91 : 3,106.52 = 1,256.30 : x
2. Step 2: Convert to fraction form
   2,250.91/3,106.52 = 1,256.30/x
3. Step 3: Cross multiply
   2,250.91x = 3,106.52 × 1,256.30
4. Step 4: Simplify right side
   2,250.91x = 3,902,721.08
5. Step 5: Solve for x
   x = 3,902,721.08/2,250.91
6. Step 6: Final answer
   x = 1,733.84