Finding the Fourth Proportional to 844,020.69, 1,164,810.47 and 557,042.55

Step by Step Solution

1. Step 1: Write the proportion equation
   844,020.69 : 1,164,810.47 = 557,042.55 : x
2. Step 2: Convert to fraction form
   844,020.69/1,164,810.47 = 557,042.55/x
3. Step 3: Cross multiply
   844,020.69x = 1,164,810.47 × 557,042.55
4. Step 4: Simplify right side
   844,020.69x = 648,848,994,475.50
5. Step 5: Solve for x
   x = 648,848,994,475.50/844,020.69
6. Step 6: Final answer
   x = 768,759.58