Finding the Fourth Proportional to 1,268.42, 1,901.83 and 446.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268.42 : 1,901.83 = 446.77 : x
2. Step 2: Convert to fraction form
   1,268.42/1,901.83 = 446.77/x
3. Step 3: Cross multiply
   1,268.42x = 1,901.83 × 446.77
4. Step 4: Simplify right side
   1,268.42x = 849,680.59
5. Step 5: Solve for x
   x = 849,680.59/1,268.42
6. Step 6: Final answer
   x = 669.87