Finding the Fourth Proportional to 1,309,428.98, 1,964,623.23 and 551,461.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,428.98 : 1,964,623.23 = 551,461.25 : x
2. Step 2: Convert to fraction form
   1,309,428.98/1,964,623.23 = 551,461.25/x
3. Step 3: Cross multiply
   1,309,428.98x = 1,964,623.23 × 551,461.25
4. Step 4: Simplify right side
   1,309,428.98x = 1,083,413,572,371.72
5. Step 5: Solve for x
   x = 1,083,413,572,371.72/1,309,428.98
6. Step 6: Final answer
   x = 827,393.92