Finding the Fourth Proportional to 2,196.86, 3,031.74 and 1,252.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.86 : 3,031.74 = 1,252.79 : x
2. Step 2: Convert to fraction form
   2,196.86/3,031.74 = 1,252.79/x
3. Step 3: Cross multiply
   2,196.86x = 3,031.74 × 1,252.79
4. Step 4: Simplify right side
   2,196.86x = 3,798,112.13
5. Step 5: Solve for x
   x = 3,798,112.13/2,196.86
6. Step 6: Final answer
   x = 1,728.89