Finding the Fourth Proportional to 2,196.63, 3,031.86 and 1,358.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.63 : 3,031.86 = 1,358.07 : x
2. Step 2: Convert to fraction form
   2,196.63/3,031.86 = 1,358.07/x
3. Step 3: Cross multiply
   2,196.63x = 3,031.86 × 1,358.07
4. Step 4: Simplify right side
   2,196.63x = 4,117,478.11
5. Step 5: Solve for x
   x = 4,117,478.11/2,196.63
6. Step 6: Final answer
   x = 1,874.45