Finding the Fourth Proportional to 1,351.69, 1,866.02 and 910.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.69 : 1,866.02 = 910.33 : x
2. Step 2: Convert to fraction form
   1,351.69/1,866.02 = 910.33/x
3. Step 3: Cross multiply
   1,351.69x = 1,866.02 × 910.33
4. Step 4: Simplify right side
   1,351.69x = 1,698,684.77
5. Step 5: Solve for x
   x = 1,698,684.77/1,351.69
6. Step 6: Final answer
   x = 1,256.71