Finding the Fourth Proportional to 1,144.99, 1,712.78 and 914.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.99 : 1,712.78 = 914.33 : x
2. Step 2: Convert to fraction form
   1,144.99/1,712.78 = 914.33/x
3. Step 3: Cross multiply
   1,144.99x = 1,712.78 × 914.33
4. Step 4: Simplify right side
   1,144.99x = 1,566,048.32
5. Step 5: Solve for x
   x = 1,566,048.32/1,144.99
6. Step 6: Final answer
   x = 1,367.74