Finding the Fourth Proportional to 1,098,314.37, 1,647,631.94 and 340,223.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,314.37 : 1,647,631.94 = 340,223.63 : x
2. Step 2: Convert to fraction form
   1,098,314.37/1,647,631.94 = 340,223.63/x
3. Step 3: Cross multiply
   1,098,314.37x = 1,647,631.94 × 340,223.63
4. Step 4: Simplify right side
   1,098,314.37x = 560,563,309,591.46
5. Step 5: Solve for x
   x = 560,563,309,591.46/1,098,314.37
6. Step 6: Final answer
   x = 510,385.12