Finding the Fourth Proportional to 3,215.32, 4,821.72 and 1,134.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215.32 : 4,821.72 = 1,134.88 : x
2. Step 2: Convert to fraction form
   3,215.32/4,821.72 = 1,134.88/x
3. Step 3: Cross multiply
   3,215.32x = 4,821.72 × 1,134.88
4. Step 4: Simplify right side
   3,215.32x = 5,472,073.59
5. Step 5: Solve for x
   x = 5,472,073.59/3,215.32
6. Step 6: Final answer
   x = 1,701.88