Finding the Fourth Proportional to 2,448.78, 3,672.50 and 805.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.78 : 3,672.50 = 805.16 : x
2. Step 2: Convert to fraction form
   2,448.78/3,672.50 = 805.16/x
3. Step 3: Cross multiply
   2,448.78x = 3,672.50 × 805.16
4. Step 4: Simplify right side
   2,448.78x = 2,956,927.71
5. Step 5: Solve for x
   x = 2,956,927.71/2,448.78
6. Step 6: Final answer
   x = 1,207.51