Finding the Fourth Proportional to 2,555.58, 3,833.25 and 800.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.58 : 3,833.25 = 800.56 : x
2. Step 2: Convert to fraction form
   2,555.58/3,833.25 = 800.56/x
3. Step 3: Cross multiply
   2,555.58x = 3,833.25 × 800.56
4. Step 4: Simplify right side
   2,555.58x = 3,068,746.62
5. Step 5: Solve for x
   x = 3,068,746.62/2,555.58
6. Step 6: Final answer
   x = 1,200.80