Finding the Fourth Proportional to 1,784.34, 2,462.42 and 998.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.34 : 2,462.42 = 998.38 : x
2. Step 2: Convert to fraction form
   1,784.34/2,462.42 = 998.38/x
3. Step 3: Cross multiply
   1,784.34x = 2,462.42 × 998.38
4. Step 4: Simplify right side
   1,784.34x = 2,458,430.88
5. Step 5: Solve for x
   x = 2,458,430.88/1,784.34
6. Step 6: Final answer
   x = 1,377.78