Finding the Fourth Proportional to 630,980.91, 870,830.06 and 359,114.94

Step by Step Solution

1. Step 1: Write the proportion equation
   630,980.91 : 870,830.06 = 359,114.94 : x
2. Step 2: Convert to fraction form
   630,980.91/870,830.06 = 359,114.94/x
3. Step 3: Cross multiply
   630,980.91x = 870,830.06 × 359,114.94
4. Step 4: Simplify right side
   630,980.91x = 312,728,082,951.52
5. Step 5: Solve for x
   x = 312,728,082,951.52/630,980.91
6. Step 6: Final answer
   x = 495,622.10