Finding the Fourth Proportional to 893,131.69, 1,232,535.72 and 485,241.61

Step by Step Solution

1. Step 1: Write the proportion equation
   893,131.69 : 1,232,535.72 = 485,241.61 : x
2. Step 2: Convert to fraction form
   893,131.69/1,232,535.72 = 485,241.61/x
3. Step 3: Cross multiply
   893,131.69x = 1,232,535.72 × 485,241.61
4. Step 4: Simplify right side
   893,131.69x = 598,077,617,155.31
5. Step 5: Solve for x
   x = 598,077,617,155.31/893,131.69
6. Step 6: Final answer
   x = 669,641.02