Finding the Fourth Proportional to 2,088.98, 3,133.91 and 856.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.98 : 3,133.91 = 856.37 : x
2. Step 2: Convert to fraction form
   2,088.98/3,133.91 = 856.37/x
3. Step 3: Cross multiply
   2,088.98x = 3,133.91 × 856.37
4. Step 4: Simplify right side
   2,088.98x = 2,683,766.56
5. Step 5: Solve for x
   x = 2,683,766.56/2,088.98
6. Step 6: Final answer
   x = 1,284.72