Finding the Fourth Proportional to 1,150.05, 1,586.88 and 1,091.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.05 : 1,586.88 = 1,091.68 : x
2. Step 2: Convert to fraction form
   1,150.05/1,586.88 = 1,091.68/x
3. Step 3: Cross multiply
   1,150.05x = 1,586.88 × 1,091.68
4. Step 4: Simplify right side
   1,150.05x = 1,732,366.56
5. Step 5: Solve for x
   x = 1,732,366.56/1,150.05
6. Step 6: Final answer
   x = 1,506.33