Finding the Fourth Proportional to 1,099.07, 1,516.72 and 601.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.07 : 1,516.72 = 601.71 : x
2. Step 2: Convert to fraction form
   1,099.07/1,516.72 = 601.71/x
3. Step 3: Cross multiply
   1,099.07x = 1,516.72 × 601.71
4. Step 4: Simplify right side
   1,099.07x = 912,624.09
5. Step 5: Solve for x
   x = 912,624.09/1,099.07
6. Step 6: Final answer
   x = 830.36