Finding the Fourth Proportional to 1,145.59, 1,718.41 and 496.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.59 : 1,718.41 = 496.34 : x
2. Step 2: Convert to fraction form
   1,145.59/1,718.41 = 496.34/x
3. Step 3: Cross multiply
   1,145.59x = 1,718.41 × 496.34
4. Step 4: Simplify right side
   1,145.59x = 852,915.62
5. Step 5: Solve for x
   x = 852,915.62/1,145.59
6. Step 6: Final answer
   x = 744.52