Finding the Fourth Proportional to 1,160.34, 1,601.27 and 663.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,160.34 : 1,601.27 = 663.06 : x
2. Step 2: Convert to fraction form
   1,160.34/1,601.27 = 663.06/x
3. Step 3: Cross multiply
   1,160.34x = 1,601.27 × 663.06
4. Step 4: Simplify right side
   1,160.34x = 1,061,738.09
5. Step 5: Solve for x
   x = 1,061,738.09/1,160.34
6. Step 6: Final answer
   x = 915.02