Finding the Fourth Proportional to 1,288,645.42, 1,933,034.82 and 329,109.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,645.42 : 1,933,034.82 = 329,109.98 : x
2. Step 2: Convert to fraction form
   1,288,645.42/1,933,034.82 = 329,109.98/x
3. Step 3: Cross multiply
   1,288,645.42x = 1,933,034.82 × 329,109.98
4. Step 4: Simplify right side
   1,288,645.42x = 636,181,050,949.50
5. Step 5: Solve for x
   x = 636,181,050,949.50/1,288,645.42
6. Step 6: Final answer
   x = 493,682.00