Finding the Fourth Proportional to 1,326.78, 1,830.71 and 767.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,326.78 : 1,830.71 = 767.27 : x
2. Step 2: Convert to fraction form
   1,326.78/1,830.71 = 767.27/x
3. Step 3: Cross multiply
   1,326.78x = 1,830.71 × 767.27
4. Step 4: Simplify right side
   1,326.78x = 1,404,655.36
5. Step 5: Solve for x
   x = 1,404,655.36/1,326.78
6. Step 6: Final answer
   x = 1,058.70