Finding the Fourth Proportional to 2,196.12, 3,030.70 and 1,201.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.12 : 3,030.70 = 1,201.39 : x
2. Step 2: Convert to fraction form
   2,196.12/3,030.70 = 1,201.39/x
3. Step 3: Cross multiply
   2,196.12x = 3,030.70 × 1,201.39
4. Step 4: Simplify right side
   2,196.12x = 3,641,052.67
5. Step 5: Solve for x
   x = 3,641,052.67/2,196.12
6. Step 6: Final answer
   x = 1,657.95