Finding the Fourth Proportional to 2,084.58, 3,128.41 and 1,425.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.58 : 3,128.41 = 1,425.06 : x
2. Step 2: Convert to fraction form
   2,084.58/3,128.41 = 1,425.06/x
3. Step 3: Cross multiply
   2,084.58x = 3,128.41 × 1,425.06
4. Step 4: Simplify right side
   2,084.58x = 4,458,171.95
5. Step 5: Solve for x
   x = 4,458,171.95/2,084.58
6. Step 6: Final answer
   x = 2,138.64