Finding the Fourth Proportional to 2,396.69, 3,595.46 and 991.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,396.69 : 3,595.46 = 991.10 : x
2. Step 2: Convert to fraction form
   2,396.69/3,595.46 = 991.10/x
3. Step 3: Cross multiply
   2,396.69x = 3,595.46 × 991.10
4. Step 4: Simplify right side
   2,396.69x = 3,563,464.44
5. Step 5: Solve for x
   x = 3,563,464.44/2,396.69
6. Step 6: Final answer
   x = 1,486.83