Finding the Fourth Proportional to 3,722.30, 5,579.57 and 1,256.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,722.30 : 5,579.57 = 1,256.27 : x
2. Step 2: Convert to fraction form
   3,722.30/5,579.57 = 1,256.27/x
3. Step 3: Cross multiply
   3,722.30x = 5,579.57 × 1,256.27
4. Step 4: Simplify right side
   3,722.30x = 7,009,440.12
5. Step 5: Solve for x
   x = 7,009,440.12/3,722.30
6. Step 6: Final answer
   x = 1,883.09