Finding the Fourth Proportional to 2,251.16, 3,106.71 and 1,256.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.16 : 3,106.71 = 1,256.48 : x
2. Step 2: Convert to fraction form
   2,251.16/3,106.71 = 1,256.48/x
3. Step 3: Cross multiply
   2,251.16x = 3,106.71 × 1,256.48
4. Step 4: Simplify right side
   2,251.16x = 3,903,518.98
5. Step 5: Solve for x
   x = 3,903,518.98/2,251.16
6. Step 6: Final answer
   x = 1,734.00