Finding the Fourth Proportional to 773,291.25, 1,158,384.78 and 394,196.67

Step by Step Solution

1. Step 1: Write the proportion equation
   773,291.25 : 1,158,384.78 = 394,196.67 : x
2. Step 2: Convert to fraction form
   773,291.25/1,158,384.78 = 394,196.67/x
3. Step 3: Cross multiply
   773,291.25x = 1,158,384.78 × 394,196.67
4. Step 4: Simplify right side
   773,291.25x = 456,631,422,854.68
5. Step 5: Solve for x
   x = 456,631,422,854.68/773,291.25
6. Step 6: Final answer
   x = 590,503.80