Finding the Fourth Proportional to 1,150,797.49, 1,588,100.64 and 641,499.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,797.49 : 1,588,100.64 = 641,499.87 : x
2. Step 2: Convert to fraction form
   1,150,797.49/1,588,100.64 = 641,499.87/x
3. Step 3: Cross multiply
   1,150,797.49x = 1,588,100.64 × 641,499.87
4. Step 4: Simplify right side
   1,150,797.49x = 1,018,766,354,106.92
5. Step 5: Solve for x
   x = 1,018,766,354,106.92/1,150,797.49
6. Step 6: Final answer
   x = 885,269.88