Finding the Fourth Proportional to 819,792, 1,131,312.96 and 442,960

Step by Step Solution

1. Step 1: Write the proportion equation
   819,792 : 1,131,312.96 = 442,960 : x
2. Step 2: Convert to fraction form
   819,792/1,131,312.96 = 442,960/x
3. Step 3: Cross multiply
   819,792x = 1,131,312.96 × 442,960
4. Step 4: Simplify right side
   819,792x = 501,126,388,761.60
5. Step 5: Solve for x
   x = 501,126,388,761.60/819,792
6. Step 6: Final answer
   x = 611,284.80