Finding the Fourth Proportional to 2,196.12, 3,030.30 and 1,357.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.12 : 3,030.30 = 1,357.02 : x
2. Step 2: Convert to fraction form
   2,196.12/3,030.30 = 1,357.02/x
3. Step 3: Cross multiply
   2,196.12x = 3,030.30 × 1,357.02
4. Step 4: Simplify right side
   2,196.12x = 4,112,177.71
5. Step 5: Solve for x
   x = 4,112,177.71/2,196.12
6. Step 6: Final answer
   x = 1,872.47