Finding the Fourth Proportional to 848.25, 1,170.69 and 498.94

Step by Step Solution

1. Step 1: Write the proportion equation
   848.25 : 1,170.69 = 498.94 : x
2. Step 2: Convert to fraction form
   848.25/1,170.69 = 498.94/x
3. Step 3: Cross multiply
   848.25x = 1,170.69 × 498.94
4. Step 4: Simplify right side
   848.25x = 584,099.27
5. Step 5: Solve for x
   x = 584,099.27/848.25
6. Step 6: Final answer
   x = 688.59