Finding the Fourth Proportional to 852,686.72, 1,176,676.83 and 470,705.30

Step by Step Solution

1. Step 1: Write the proportion equation
   852,686.72 : 1,176,676.83 = 470,705.30 : x
2. Step 2: Convert to fraction form
   852,686.72/1,176,676.83 = 470,705.30/x
3. Step 3: Cross multiply
   852,686.72x = 1,176,676.83 × 470,705.30
4. Step 4: Simplify right side
   852,686.72x = 553,868,014,384.82
5. Step 5: Solve for x
   x = 553,868,014,384.82/852,686.72
6. Step 6: Final answer
   x = 649,556.28