Finding the Fourth Proportional to 2,091.27, 3,138.93 and 996.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.27 : 3,138.93 = 996.39 : x
2. Step 2: Convert to fraction form
   2,091.27/3,138.93 = 996.39/x
3. Step 3: Cross multiply
   2,091.27x = 3,138.93 × 996.39
4. Step 4: Simplify right side
   2,091.27x = 3,127,598.46
5. Step 5: Solve for x
   x = 3,127,598.46/2,091.27
6. Step 6: Final answer
   x = 1,495.55