Finding the Fourth Proportional to 1,007,796.69, 1,390,759.38 and 555,087.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,796.69 : 1,390,759.38 = 555,087.69 : x
2. Step 2: Convert to fraction form
   1,007,796.69/1,390,759.38 = 555,087.69/x
3. Step 3: Cross multiply
   1,007,796.69x = 1,390,759.38 × 555,087.69
4. Step 4: Simplify right side
   1,007,796.69x = 771,993,411,590.03
5. Step 5: Solve for x
   x = 771,993,411,590.03/1,007,796.69
6. Step 6: Final answer
   x = 766,020.98