Finding the Fourth Proportional to 938,109.50, 1,407,150.43 and 298,451.94

Step by Step Solution

1. Step 1: Write the proportion equation
   938,109.50 : 1,407,150.43 = 298,451.94 : x
2. Step 2: Convert to fraction form
   938,109.50/1,407,150.43 = 298,451.94/x
3. Step 3: Cross multiply
   938,109.50x = 1,407,150.43 × 298,451.94
4. Step 4: Simplify right side
   938,109.50x = 419,966,777,597.61
5. Step 5: Solve for x
   x = 419,966,777,597.61/938,109.50
6. Step 6: Final answer
   x = 447,673.52