Finding the Fourth Proportional to 1,100.95, 1,519.31 and 603.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.95 : 1,519.31 = 603.61 : x
2. Step 2: Convert to fraction form
   1,100.95/1,519.31 = 603.61/x
3. Step 3: Cross multiply
   1,100.95x = 1,519.31 × 603.61
4. Step 4: Simplify right side
   1,100.95x = 917,060.09
5. Step 5: Solve for x
   x = 917,060.09/1,100.95
6. Step 6: Final answer
   x = 832.98