Finding the Fourth Proportional to 1,144.58, 1,717.01 and 528.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.58 : 1,717.01 = 528.42 : x
2. Step 2: Convert to fraction form
   1,144.58/1,717.01 = 528.42/x
3. Step 3: Cross multiply
   1,144.58x = 1,717.01 × 528.42
4. Step 4: Simplify right side
   1,144.58x = 907,301.52
5. Step 5: Solve for x
   x = 907,301.52/1,144.58
6. Step 6: Final answer
   x = 792.70