Finding the Fourth Proportional to 1,641.25, 2,472.83 and 1,485.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.25 : 2,472.83 = 1,485.27 : x
2. Step 2: Convert to fraction form
   1,641.25/2,472.83 = 1,485.27/x
3. Step 3: Cross multiply
   1,641.25x = 2,472.83 × 1,485.27
4. Step 4: Simplify right side
   1,641.25x = 3,672,818.36
5. Step 5: Solve for x
   x = 3,672,818.36/1,641.25
6. Step 6: Final answer
   x = 2,237.82