Finding the Fourth Proportional to 2,196.81, 3,032.21 and 1,253.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.81 : 3,032.21 = 1,253.12 : x
2. Step 2: Convert to fraction form
   2,196.81/3,032.21 = 1,253.12/x
3. Step 3: Cross multiply
   2,196.81x = 3,032.21 × 1,253.12
4. Step 4: Simplify right side
   2,196.81x = 3,799,701.57
5. Step 5: Solve for x
   x = 3,799,701.57/2,196.81
6. Step 6: Final answer
   x = 1,729.65