Finding the Fourth Proportional to 2,799.65, 4,196.38 and 1,155.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.65 : 4,196.38 = 1,155.29 : x
2. Step 2: Convert to fraction form
   2,799.65/4,196.38 = 1,155.29/x
3. Step 3: Cross multiply
   2,799.65x = 4,196.38 × 1,155.29
4. Step 4: Simplify right side
   2,799.65x = 4,848,035.85
5. Step 5: Solve for x
   x = 4,848,035.85/2,799.65
6. Step 6: Final answer
   x = 1,731.66