Finding the Fourth Proportional to 2,196.60, 3,031.02 and 1,357.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.60 : 3,031.02 = 1,357.32 : x
2. Step 2: Convert to fraction form
   2,196.60/3,031.02 = 1,357.32/x
3. Step 3: Cross multiply
   2,196.60x = 3,031.02 × 1,357.32
4. Step 4: Simplify right side
   2,196.60x = 4,114,064.07
5. Step 5: Solve for x
   x = 4,114,064.07/2,196.60
6. Step 6: Final answer
   x = 1,872.92