Finding the Fourth Proportional to 1,066,636.28, 1,471,984.72 and 647,537.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066,636.28 : 1,471,984.72 = 647,537.15 : x
2. Step 2: Convert to fraction form
   1,066,636.28/1,471,984.72 = 647,537.15/x
3. Step 3: Cross multiply
   1,066,636.28x = 1,471,984.72 × 647,537.15
4. Step 4: Simplify right side
   1,066,636.28x = 953,164,792,493.47
5. Step 5: Solve for x
   x = 953,164,792,493.47/1,066,636.28
6. Step 6: Final answer
   x = 893,617.45