Finding the Fourth Proportional to 1,155.33, 1,732.05 and 790.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.33 : 1,732.05 = 790.83 : x
2. Step 2: Convert to fraction form
   1,155.33/1,732.05 = 790.83/x
3. Step 3: Cross multiply
   1,155.33x = 1,732.05 × 790.83
4. Step 4: Simplify right side
   1,155.33x = 1,369,757.10
5. Step 5: Solve for x
   x = 1,369,757.10/1,155.33
6. Step 6: Final answer
   x = 1,185.60