Finding the Fourth Proportional to 1,017,086.22, 1,403,596.78 and 558,243.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,086.22 : 1,403,596.78 = 558,243.71 : x
2. Step 2: Convert to fraction form
   1,017,086.22/1,403,596.78 = 558,243.71/x
3. Step 3: Cross multiply
   1,017,086.22x = 1,403,596.78 × 558,243.71
4. Step 4: Simplify right side
   1,017,086.22x = 783,549,074,205.02
5. Step 5: Solve for x
   x = 783,549,074,205.02/1,017,086.22
6. Step 6: Final answer
   x = 770,386.09