Finding the Fourth Proportional to 1,098.42, 1,515.80 and 601.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.42 : 1,515.80 = 601.05 : x
2. Step 2: Convert to fraction form
   1,098.42/1,515.80 = 601.05/x
3. Step 3: Cross multiply
   1,098.42x = 1,515.80 × 601.05
4. Step 4: Simplify right side
   1,098.42x = 911,071.59
5. Step 5: Solve for x
   x = 911,071.59/1,098.42
6. Step 6: Final answer
   x = 829.44