Finding the Fourth Proportional to 1,098.98, 1,516.61 and 601.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.98 : 1,516.61 = 601.63 : x
2. Step 2: Convert to fraction form
   1,098.98/1,516.61 = 601.63/x
3. Step 3: Cross multiply
   1,098.98x = 1,516.61 × 601.63
4. Step 4: Simplify right side
   1,098.98x = 912,428.43
5. Step 5: Solve for x
   x = 912,428.43/1,098.98
6. Step 6: Final answer
   x = 830.25