Finding the Fourth Proportional to 2,196,928, 3,031,806.72 and 1,243,072

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196,928 : 3,031,806.72 = 1,243,072 : x
2. Step 2: Convert to fraction form
   2,196,928/3,031,806.72 = 1,243,072/x
3. Step 3: Cross multiply
   2,196,928x = 3,031,806.72 × 1,243,072
4. Step 4: Simplify right side
   2,196,928x = 3,768,754,043,043.84
5. Step 5: Solve for x
   x = 3,768,754,043,043.84/2,196,928
6. Step 6: Final answer
   x = 1,715,465.43