Finding the Fourth Proportional to 2,196.77, 3,031.54 and 1,202.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.77 : 3,031.54 = 1,202.05 : x
2. Step 2: Convert to fraction form
   2,196.77/3,031.54 = 1,202.05/x
3. Step 3: Cross multiply
   2,196.77x = 3,031.54 × 1,202.05
4. Step 4: Simplify right side
   2,196.77x = 3,644,041.49
5. Step 5: Solve for x
   x = 3,644,041.49/2,196.77
6. Step 6: Final answer
   x = 1,658.82