Finding the Fourth Proportional to 1,100.72, 1,519.01 and 603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.72 : 1,519.01 = 603.38 : x
2. Step 2: Convert to fraction form
   1,100.72/1,519.01 = 603.38/x
3. Step 3: Cross multiply
   1,100.72x = 1,519.01 × 603.38
4. Step 4: Simplify right side
   1,100.72x = 916,529.64
5. Step 5: Solve for x
   x = 916,529.64/1,100.72
6. Step 6: Final answer
   x = 832.67