Finding the Fourth Proportional to 2,196.24, 3,029.64 and 1,311.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.24 : 3,029.64 = 1,311.48 : x
2. Step 2: Convert to fraction form
   2,196.24/3,029.64 = 1,311.48/x
3. Step 3: Cross multiply
   2,196.24x = 3,029.64 × 1,311.48
4. Step 4: Simplify right side
   2,196.24x = 3,973,312.27
5. Step 5: Solve for x
   x = 3,973,312.27/2,196.24
6. Step 6: Final answer
   x = 1,809.14