Finding the Fourth Proportional to 2,196.11, 3,029.10 and 1,311.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.11 : 3,029.10 = 1,311.19 : x
2. Step 2: Convert to fraction form
   2,196.11/3,029.10 = 1,311.19/x
3. Step 3: Cross multiply
   2,196.11x = 3,029.10 × 1,311.19
4. Step 4: Simplify right side
   2,196.11x = 3,971,713.14
5. Step 5: Solve for x
   x = 3,971,713.14/2,196.11
6. Step 6: Final answer
   x = 1,808.52