Finding the Fourth Proportional to 870,111.24, 1,200,974.24 and 594,580.62

Step by Step Solution

1. Step 1: Write the proportion equation
   870,111.24 : 1,200,974.24 = 594,580.62 : x
2. Step 2: Convert to fraction form
   870,111.24/1,200,974.24 = 594,580.62/x
3. Step 3: Cross multiply
   870,111.24x = 1,200,974.24 × 594,580.62
4. Step 4: Simplify right side
   870,111.24x = 714,076,008,223.23
5. Step 5: Solve for x
   x = 714,076,008,223.23/870,111.24
6. Step 6: Final answer
   x = 820,672.09