Finding the Fourth Proportional to 2,196.64, 3,030.36 and 1,265.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.64 : 3,030.36 = 1,265.12 : x
2. Step 2: Convert to fraction form
   2,196.64/3,030.36 = 1,265.12/x
3. Step 3: Cross multiply
   2,196.64x = 3,030.36 × 1,265.12
4. Step 4: Simplify right side
   2,196.64x = 3,833,769.04
5. Step 5: Solve for x
   x = 3,833,769.04/2,196.64
6. Step 6: Final answer
   x = 1,745.29