Finding the Fourth Proportional to 1,079,404.10, 1,619,106.15 and 331,487.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,404.10 : 1,619,106.15 = 331,487.30 : x
2. Step 2: Convert to fraction form
   1,079,404.10/1,619,106.15 = 331,487.30/x
3. Step 3: Cross multiply
   1,079,404.10x = 1,619,106.15 × 331,487.30
4. Step 4: Simplify right side
   1,079,404.10x = 536,713,126,076.90
5. Step 5: Solve for x
   x = 536,713,126,076.90/1,079,404.10
6. Step 6: Final answer
   x = 497,230.95