Finding the Fourth Proportional to 2,284.39, 3,428.61 and 1,115.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.39 : 3,428.61 = 1,115.02 : x
2. Step 2: Convert to fraction form
   2,284.39/3,428.61 = 1,115.02/x
3. Step 3: Cross multiply
   2,284.39x = 3,428.61 × 1,115.02
4. Step 4: Simplify right side
   2,284.39x = 3,822,968.72
5. Step 5: Solve for x
   x = 3,822,968.72/2,284.39
6. Step 6: Final answer
   x = 1,673.52