Finding the Fourth Proportional to 3,012.33, 4,519.32 and 1,256.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,012.33 : 4,519.32 = 1,256.76 : x
2. Step 2: Convert to fraction form
   3,012.33/4,519.32 = 1,256.76/x
3. Step 3: Cross multiply
   3,012.33x = 4,519.32 × 1,256.76
4. Step 4: Simplify right side
   3,012.33x = 5,679,671.72
5. Step 5: Solve for x
   x = 5,679,671.72/3,012.33
6. Step 6: Final answer
   x = 1,885.47