Finding the Fourth Proportional to 1,091.56, 1,506.18 and 797.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.56 : 1,506.18 = 797.16 : x
2. Step 2: Convert to fraction form
   1,091.56/1,506.18 = 797.16/x
3. Step 3: Cross multiply
   1,091.56x = 1,506.18 × 797.16
4. Step 4: Simplify right side
   1,091.56x = 1,200,666.45
5. Step 5: Solve for x
   x = 1,200,666.45/1,091.56
6. Step 6: Final answer
   x = 1,099.95