Finding the Fourth Proportional to 2,196.40, 3,030.90 and 1,252.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.40 : 3,030.90 = 1,252.06 : x
2. Step 2: Convert to fraction form
   2,196.40/3,030.90 = 1,252.06/x
3. Step 3: Cross multiply
   2,196.40x = 3,030.90 × 1,252.06
4. Step 4: Simplify right side
   2,196.40x = 3,794,868.65
5. Step 5: Solve for x
   x = 3,794,868.65/2,196.40
6. Step 6: Final answer
   x = 1,727.77