Finding the Fourth Proportional to 2,856.34, 4,283.69 and 1,101.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.34 : 4,283.69 = 1,101.21 : x
2. Step 2: Convert to fraction form
   2,856.34/4,283.69 = 1,101.21/x
3. Step 3: Cross multiply
   2,856.34x = 4,283.69 × 1,101.21
4. Step 4: Simplify right side
   2,856.34x = 4,717,215.34
5. Step 5: Solve for x
   x = 4,717,215.34/2,856.34
6. Step 6: Final answer
   x = 1,651.49