Finding the Fourth Proportional to 2,193,200.10, 3,289,800.15 and 697,443.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193,200.10 : 3,289,800.15 = 697,443.30 : x
2. Step 2: Convert to fraction form
   2,193,200.10/3,289,800.15 = 697,443.30/x
3. Step 3: Cross multiply
   2,193,200.10x = 3,289,800.15 × 697,443.30
4. Step 4: Simplify right side
   2,193,200.10x = 2,294,449,072,956.50
5. Step 5: Solve for x
   x = 2,294,449,072,956.50/2,193,200.10
6. Step 6: Final answer
   x = 1,046,164.95