Finding the Fourth Proportional to 1,017,328.50, 1,403,978.94 and 564,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,328.50 : 1,403,978.94 = 564,619.50 : x
2. Step 2: Convert to fraction form
   1,017,328.50/1,403,978.94 = 564,619.50/x
3. Step 3: Cross multiply
   1,017,328.50x = 1,403,978.94 × 564,619.50
4. Step 4: Simplify right side
   1,017,328.50x = 792,713,887,113.33
5. Step 5: Solve for x
   x = 792,713,887,113.33/1,017,328.50
6. Step 6: Final answer
   x = 779,211.32