Finding the Fourth Proportional to 827,856, 1,142,442.72 and 470,160

Step by Step Solution

1. Step 1: Write the proportion equation
   827,856 : 1,142,442.72 = 470,160 : x
2. Step 2: Convert to fraction form
   827,856/1,142,442.72 = 470,160/x
3. Step 3: Cross multiply
   827,856x = 1,142,442.72 × 470,160
4. Step 4: Simplify right side
   827,856x = 537,130,869,235.20
5. Step 5: Solve for x
   x = 537,130,869,235.20/827,856
6. Step 6: Final answer
   x = 648,821.62