Finding the Fourth Proportional to 1,160.82, 1,602.04 and 663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,160.82 : 1,602.04 = 663.50 : x
2. Step 2: Convert to fraction form
   1,160.82/1,602.04 = 663.50/x
3. Step 3: Cross multiply
   1,160.82x = 1,602.04 × 663.50
4. Step 4: Simplify right side
   1,160.82x = 1,062,953.54
5. Step 5: Solve for x
   x = 1,062,953.54/1,160.82
6. Step 6: Final answer
   x = 915.69