Finding the Fourth Proportional to 2,088.53, 3,132.72 and 855.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.53 : 3,132.72 = 855.93 : x
2. Step 2: Convert to fraction form
   2,088.53/3,132.72 = 855.93/x
3. Step 3: Cross multiply
   2,088.53x = 3,132.72 × 855.93
4. Step 4: Simplify right side
   2,088.53x = 2,681,389.03
5. Step 5: Solve for x
   x = 2,681,389.03/2,088.53
6. Step 6: Final answer
   x = 1,283.87