Finding the Fourth Proportional to 893,510.72, 1,233,054.32 and 485,612.56

Step by Step Solution

1. Step 1: Write the proportion equation
   893,510.72 : 1,233,054.32 = 485,612.56 : x
2. Step 2: Convert to fraction form
   893,510.72/1,233,054.32 = 485,612.56/x
3. Step 3: Cross multiply
   893,510.72x = 1,233,054.32 × 485,612.56
4. Step 4: Simplify right side
   893,510.72x = 598,786,664,954.26
5. Step 5: Solve for x
   x = 598,786,664,954.26/893,510.72
6. Step 6: Final answer
   x = 670,150.51