Finding the Fourth Proportional to 3,076.29, 4,611.69 and 1,128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,076.29 : 4,611.69 = 1,128.04 : x
2. Step 2: Convert to fraction form
   3,076.29/4,611.69 = 1,128.04/x
3. Step 3: Cross multiply
   3,076.29x = 4,611.69 × 1,128.04
4. Step 4: Simplify right side
   3,076.29x = 5,202,170.79
5. Step 5: Solve for x
   x = 5,202,170.79/3,076.29
6. Step 6: Final answer
   x = 1,691.05