Finding the Fourth Proportional to 970,630.24, 1,456,152.72 and 339,564.64

Step by Step Solution

1. Step 1: Write the proportion equation
   970,630.24 : 1,456,152.72 = 339,564.64 : x
2. Step 2: Convert to fraction form
   970,630.24/1,456,152.72 = 339,564.64/x
3. Step 3: Cross multiply
   970,630.24x = 1,456,152.72 × 339,564.64
4. Step 4: Simplify right side
   970,630.24x = 494,457,974,151.82
5. Step 5: Solve for x
   x = 494,457,974,151.82/970,630.24
6. Step 6: Final answer
   x = 509,419.50