Finding the Fourth Proportional to 820,552, 1,132,363.20 and 462,856

Step by Step Solution

1. Step 1: Write the proportion equation
   820,552 : 1,132,363.20 = 462,856 : x
2. Step 2: Convert to fraction form
   820,552/1,132,363.20 = 462,856/x
3. Step 3: Cross multiply
   820,552x = 1,132,363.20 × 462,856
4. Step 4: Simplify right side
   820,552x = 524,121,101,299.20
5. Step 5: Solve for x
   x = 524,121,101,299.20/820,552
6. Step 6: Final answer
   x = 638,742.09