Finding the Fourth Proportional to 2,079.39, 2,869.56 and 1,147.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.39 : 2,869.56 = 1,147.89 : x
2. Step 2: Convert to fraction form
   2,079.39/2,869.56 = 1,147.89/x
3. Step 3: Cross multiply
   2,079.39x = 2,869.56 × 1,147.89
4. Step 4: Simplify right side
   2,079.39x = 3,293,939.23
5. Step 5: Solve for x
   x = 3,293,939.23/2,079.39
6. Step 6: Final answer
   x = 1,584.09