Finding the Fourth Proportional to 1,098.96, 1,516.59 and 679.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.96 : 1,516.59 = 679.38 : x
2. Step 2: Convert to fraction form
   1,098.96/1,516.59 = 679.38/x
3. Step 3: Cross multiply
   1,098.96x = 1,516.59 × 679.38
4. Step 4: Simplify right side
   1,098.96x = 1,030,340.91
5. Step 5: Solve for x
   x = 1,030,340.91/1,098.96
6. Step 6: Final answer
   x = 937.56