Finding the Fourth Proportional to 1,150,689.16, 1,588,004.82 and 641,395.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,689.16 : 1,588,004.82 = 641,395.24 : x
2. Step 2: Convert to fraction form
   1,150,689.16/1,588,004.82 = 641,395.24/x
3. Step 3: Cross multiply
   1,150,689.16x = 1,588,004.82 × 641,395.24
4. Step 4: Simplify right side
   1,150,689.16x = 1,018,538,732,645.06
5. Step 5: Solve for x
   x = 1,018,538,732,645.06/1,150,689.16
6. Step 6: Final answer
   x = 885,155.41