Finding the Fourth Proportional to 2,168.18, 3,250.56 and 998.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.18 : 3,250.56 = 998.93 : x
2. Step 2: Convert to fraction form
   2,168.18/3,250.56 = 998.93/x
3. Step 3: Cross multiply
   2,168.18x = 3,250.56 × 998.93
4. Step 4: Simplify right side
   2,168.18x = 3,247,081.90
5. Step 5: Solve for x
   x = 3,247,081.90/2,168.18
6. Step 6: Final answer
   x = 1,497.61