Finding the Fourth Proportional to 1,328.82, 1,992.42 and 506.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328.82 : 1,992.42 = 506.63 : x
2. Step 2: Convert to fraction form
   1,328.82/1,992.42 = 506.63/x
3. Step 3: Cross multiply
   1,328.82x = 1,992.42 × 506.63
4. Step 4: Simplify right side
   1,328.82x = 1,009,409.78
5. Step 5: Solve for x
   x = 1,009,409.78/1,328.82
6. Step 6: Final answer
   x = 759.63