Finding the Fourth Proportional to 2,196.31, 3,030.96 and 1,201.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.31 : 3,030.96 = 1,201.69 : x
2. Step 2: Convert to fraction form
   2,196.31/3,030.96 = 1,201.69/x
3. Step 3: Cross multiply
   2,196.31x = 3,030.96 × 1,201.69
4. Step 4: Simplify right side
   2,196.31x = 3,642,274.32
5. Step 5: Solve for x
   x = 3,642,274.32/2,196.31
6. Step 6: Final answer
   x = 1,658.36