Finding the Fourth Proportional to 2,298.72, 3,448.32 and 1,324.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.72 : 3,448.32 = 1,324.80 : x
2. Step 2: Convert to fraction form
   2,298.72/3,448.32 = 1,324.80/x
3. Step 3: Cross multiply
   2,298.72x = 3,448.32 × 1,324.80
4. Step 4: Simplify right side
   2,298.72x = 4,568,334.34
5. Step 5: Solve for x
   x = 4,568,334.34/2,298.72
6. Step 6: Final answer
   x = 1,987.34