Finding the Fourth Proportional to 2,088.41, 3,132.50 and 855.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.41 : 3,132.50 = 855.77 : x
2. Step 2: Convert to fraction form
   2,088.41/3,132.50 = 855.77/x
3. Step 3: Cross multiply
   2,088.41x = 3,132.50 × 855.77
4. Step 4: Simplify right side
   2,088.41x = 2,680,679.58
5. Step 5: Solve for x
   x = 2,680,679.58/2,088.41
6. Step 6: Final answer
   x = 1,283.60