Finding the Fourth Proportional to 630,697.41, 870,059.72 and 412,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   630,697.41 : 870,059.72 = 412,810.25 : x
2. Step 2: Convert to fraction form
   630,697.41/870,059.72 = 412,810.25/x
3. Step 3: Cross multiply
   630,697.41x = 870,059.72 × 412,810.25
4. Step 4: Simplify right side
   630,697.41x = 359,169,564,113.78
5. Step 5: Solve for x
   x = 359,169,564,113.78/630,697.41
6. Step 6: Final answer
   x = 569,480.00