Finding the Fourth Proportional to 2,799.77, 4,196.61 and 1,155.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.77 : 4,196.61 = 1,155.06 : x
2. Step 2: Convert to fraction form
   2,799.77/4,196.61 = 1,155.06/x
3. Step 3: Cross multiply
   2,799.77x = 4,196.61 × 1,155.06
4. Step 4: Simplify right side
   2,799.77x = 4,847,336.35
5. Step 5: Solve for x
   x = 4,847,336.35/2,799.77
6. Step 6: Final answer
   x = 1,731.34