Finding the Fourth Proportional to 3,199.78, 4,796.63 and 1,118.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,199.78 : 4,796.63 = 1,118.43 : x
2. Step 2: Convert to fraction form
   3,199.78/4,796.63 = 1,118.43/x
3. Step 3: Cross multiply
   3,199.78x = 4,796.63 × 1,118.43
4. Step 4: Simplify right side
   3,199.78x = 5,364,678.20
5. Step 5: Solve for x
   x = 5,364,678.20/3,199.78
6. Step 6: Final answer
   x = 1,676.58