Finding the Fourth Proportional to 1,100.98, 1,519.34 and 603.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.98 : 1,519.34 = 603.60 : x
2. Step 2: Convert to fraction form
   1,100.98/1,519.34 = 603.60/x
3. Step 3: Cross multiply
   1,100.98x = 1,519.34 × 603.60
4. Step 4: Simplify right side
   1,100.98x = 917,064.91
5. Step 5: Solve for x
   x = 917,064.91/1,100.98
6. Step 6: Final answer
   x = 832.96