Finding the Fourth Proportional to 2,071.25, 2,859.61 and 1,425.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.25 : 2,859.61 = 1,425.59 : x
2. Step 2: Convert to fraction form
   2,071.25/2,859.61 = 1,425.59/x
3. Step 3: Cross multiply
   2,071.25x = 2,859.61 × 1,425.59
4. Step 4: Simplify right side
   2,071.25x = 4,076,635.00
5. Step 5: Solve for x
   x = 4,076,635.00/2,071.25
6. Step 6: Final answer
   x = 1,968.20