Finding the Fourth Proportional to 1,144.94, 1,718.01 and 528.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.94 : 1,718.01 = 528.59 : x
2. Step 2: Convert to fraction form
   1,144.94/1,718.01 = 528.59/x
3. Step 3: Cross multiply
   1,144.94x = 1,718.01 × 528.59
4. Step 4: Simplify right side
   1,144.94x = 908,127.20
5. Step 5: Solve for x
   x = 908,127.20/1,144.94
6. Step 6: Final answer
   x = 793.17