Finding the Fourth Proportional to 2,196,915, 3,031,788.78 and 1,243,059

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196,915 : 3,031,788.78 = 1,243,059 : x
2. Step 2: Convert to fraction form
   2,196,915/3,031,788.78 = 1,243,059/x
3. Step 3: Cross multiply
   2,196,915x = 3,031,788.78 × 1,243,059
4. Step 4: Simplify right side
   2,196,915x = 3,768,692,329,078.02
5. Step 5: Solve for x
   x = 3,768,692,329,078.02/2,196,915
6. Step 6: Final answer
   x = 1,715,447.49