Finding the Fourth Proportional to 1,150,510.23, 1,587,758.36 and 641,216.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,510.23 : 1,587,758.36 = 641,216.25 : x
2. Step 2: Convert to fraction form
   1,150,510.23/1,587,758.36 = 641,216.25/x
3. Step 3: Cross multiply
   1,150,510.23x = 1,587,758.36 × 641,216.25
4. Step 4: Simplify right side
   1,150,510.23x = 1,018,096,458,299.27
5. Step 5: Solve for x
   x = 1,018,096,458,299.27/1,150,510.23
6. Step 6: Final answer
   x = 884,908.65