Finding the Fourth Proportional to 893,498.72, 1,233,037.76 and 485,600.56

Step by Step Solution

1. Step 1: Write the proportion equation
   893,498.72 : 1,233,037.76 = 485,600.56 : x
2. Step 2: Convert to fraction form
   893,498.72/1,233,037.76 = 485,600.56/x
3. Step 3: Cross multiply
   893,498.72x = 1,233,037.76 × 485,600.56
4. Step 4: Simplify right side
   893,498.72x = 598,763,826,757.15
5. Step 5: Solve for x
   x = 598,763,826,757.15/893,498.72
6. Step 6: Final answer
   x = 670,133.95