Finding the Fourth Proportional to 1,098.51, 1,515.89 and 601.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.51 : 1,515.89 = 601.05 : x
2. Step 2: Convert to fraction form
   1,098.51/1,515.89 = 601.05/x
3. Step 3: Cross multiply
   1,098.51x = 1,515.89 × 601.05
4. Step 4: Simplify right side
   1,098.51x = 911,122.68
5. Step 5: Solve for x
   x = 911,122.68/1,098.51
6. Step 6: Final answer
   x = 829.42