Finding the Fourth Proportional to 1,100.52, 1,518.74 and 603.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.52 : 1,518.74 = 603.21 : x
2. Step 2: Convert to fraction form
   1,100.52/1,518.74 = 603.21/x
3. Step 3: Cross multiply
   1,100.52x = 1,518.74 × 603.21
4. Step 4: Simplify right side
   1,100.52x = 916,116.14
5. Step 5: Solve for x
   x = 916,116.14/1,100.52
6. Step 6: Final answer
   x = 832.44