Finding the Fourth Proportional to 2,781.83, 4,173.33 and 807.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781.83 : 4,173.33 = 807.46 : x
2. Step 2: Convert to fraction form
   2,781.83/4,173.33 = 807.46/x
3. Step 3: Cross multiply
   2,781.83x = 4,173.33 × 807.46
4. Step 4: Simplify right side
   2,781.83x = 3,369,797.04
5. Step 5: Solve for x
   x = 3,369,797.04/2,781.83
6. Step 6: Final answer
   x = 1,211.36