Finding the Fourth Proportional to 1,425.69, 2,126.83 and 1,326.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.69 : 2,126.83 = 1,326.26 : x
2. Step 2: Convert to fraction form
   1,425.69/2,126.83 = 1,326.26/x
3. Step 3: Cross multiply
   1,425.69x = 2,126.83 × 1,326.26
4. Step 4: Simplify right side
   1,425.69x = 2,820,729.56
5. Step 5: Solve for x
   x = 2,820,729.56/1,425.69
6. Step 6: Final answer
   x = 1,978.50