Finding the Fourth Proportional to 918,665.82, 1,267,801.02 and 510,809.54

Step by Step Solution

1. Step 1: Write the proportion equation
   918,665.82 : 1,267,801.02 = 510,809.54 : x
2. Step 2: Convert to fraction form
   918,665.82/1,267,801.02 = 510,809.54/x
3. Step 3: Cross multiply
   918,665.82x = 1,267,801.02 × 510,809.54
4. Step 4: Simplify right side
   918,665.82x = 647,604,849,498.73
5. Step 5: Solve for x
   x = 647,604,849,498.73/918,665.82
6. Step 6: Final answer
   x = 704,940.62