Finding the Fourth Proportional to 1,150,796.49, 1,588,099.26 and 641,498.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150,796.49 : 1,588,099.26 = 641,498.87 : x
2. Step 2: Convert to fraction form
   1,150,796.49/1,588,099.26 = 641,498.87/x
3. Step 3: Cross multiply
   1,150,796.49x = 1,588,099.26 × 641,498.87
4. Step 4: Simplify right side
   1,150,796.49x = 1,018,763,872,797.34
5. Step 5: Solve for x
   x = 1,018,763,872,797.34/1,150,796.49
6. Step 6: Final answer
   x = 885,268.49