Finding the Fourth Proportional to 1,114,322.92, 1,672,148.43 and 404,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114,322.92 : 1,672,148.43 = 404,406.31 : x
2. Step 2: Convert to fraction form
   1,114,322.92/1,672,148.43 = 404,406.31/x
3. Step 3: Cross multiply
   1,114,322.92x = 1,672,148.43 × 404,406.31
4. Step 4: Simplify right side
   1,114,322.92x = 676,227,376,348.59
5. Step 5: Solve for x
   x = 676,227,376,348.59/1,114,322.92
6. Step 6: Final answer
   x = 606,850.46