Finding the Fourth Proportional to 1,150,890.75, 1,588,229.24 and 641,625.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,890.75 : 1,588,229.24 = 641,625.93 : x
2. Step 2: Convert to fraction form
   1,150,890.75/1,588,229.24 = 641,625.93/x
3. Step 3: Cross multiply
   1,150,890.75x = 1,588,229.24 × 641,625.93
4. Step 4: Simplify right side
   1,150,890.75x = 1,019,049,059,960.06
5. Step 5: Solve for x
   x = 1,019,049,059,960.06/1,150,890.75
6. Step 6: Final answer
   x = 885,443.78