Finding the Fourth Proportional to 1,100.77, 1,519.01 and 603.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.77 : 1,519.01 = 603.39 : x
2. Step 2: Convert to fraction form
   1,100.77/1,519.01 = 603.39/x
3. Step 3: Cross multiply
   1,100.77x = 1,519.01 × 603.39
4. Step 4: Simplify right side
   1,100.77x = 916,553.94
5. Step 5: Solve for x
   x = 916,553.94/1,100.77
6. Step 6: Final answer
   x = 832.65