Finding the Fourth Proportional to 2,088.58, 3,131.93 and 994.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.58 : 3,131.93 = 994.27 : x
2. Step 2: Convert to fraction form
   2,088.58/3,131.93 = 994.27/x
3. Step 3: Cross multiply
   2,088.58x = 3,131.93 × 994.27
4. Step 4: Simplify right side
   2,088.58x = 3,113,979.07
5. Step 5: Solve for x
   x = 3,113,979.07/2,088.58
6. Step 6: Final answer
   x = 1,490.96