Finding the Fourth Proportional to 1,047,608.50, 1,445,699.73 and 570,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,608.50 : 1,445,699.73 = 570,680.50 : x
2. Step 2: Convert to fraction form
   1,047,608.50/1,445,699.73 = 570,680.50/x
3. Step 3: Cross multiply
   1,047,608.50x = 1,445,699.73 × 570,680.50
4. Step 4: Simplify right side
   1,047,608.50x = 825,032,644,766.27
5. Step 5: Solve for x
   x = 825,032,644,766.27/1,047,608.50
6. Step 6: Final answer
   x = 787,539.09