Finding the Fourth Proportional to 2,448.31, 3,672.71 and 804.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.31 : 3,672.71 = 804.86 : x
2. Step 2: Convert to fraction form
   2,448.31/3,672.71 = 804.86/x
3. Step 3: Cross multiply
   2,448.31x = 3,672.71 × 804.86
4. Step 4: Simplify right side
   2,448.31x = 2,956,017.37
5. Step 5: Solve for x
   x = 2,956,017.37/2,448.31
6. Step 6: Final answer
   x = 1,207.37