Finding the Fourth Proportional to 1,613.94, 2,422.38 and 998.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.94 : 2,422.38 = 998.82 : x
2. Step 2: Convert to fraction form
   1,613.94/2,422.38 = 998.82/x
3. Step 3: Cross multiply
   1,613.94x = 2,422.38 × 998.82
4. Step 4: Simplify right side
   1,613.94x = 2,419,521.59
5. Step 5: Solve for x
   x = 2,419,521.59/1,613.94
6. Step 6: Final answer
   x = 1,499.14