Finding the Fourth Proportional to 1,915.25, 2,642.32 and 1,326.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915.25 : 2,642.32 = 1,326.27 : x
2. Step 2: Convert to fraction form
   1,915.25/2,642.32 = 1,326.27/x
3. Step 3: Cross multiply
   1,915.25x = 2,642.32 × 1,326.27
4. Step 4: Simplify right side
   1,915.25x = 3,504,441.31
5. Step 5: Solve for x
   x = 3,504,441.31/1,915.25
6. Step 6: Final answer
   x = 1,829.76