Finding the Fourth Proportional to 3,256.79, 4,885.59 and 1,065.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,256.79 : 4,885.59 = 1,065.74 : x
2. Step 2: Convert to fraction form
   3,256.79/4,885.59 = 1,065.74/x
3. Step 3: Cross multiply
   3,256.79x = 4,885.59 × 1,065.74
4. Step 4: Simplify right side
   3,256.79x = 5,206,768.69
5. Step 5: Solve for x
   x = 5,206,768.69/3,256.79
6. Step 6: Final answer
   x = 1,598.74