Finding the Fourth Proportional to 1,100.60, 1,518.86 and 603.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.60 : 1,518.86 = 603.24 : x
2. Step 2: Convert to fraction form
   1,100.60/1,518.86 = 603.24/x
3. Step 3: Cross multiply
   1,100.60x = 1,518.86 × 603.24
4. Step 4: Simplify right side
   1,100.60x = 916,229.51
5. Step 5: Solve for x
   x = 916,229.51/1,100.60
6. Step 6: Final answer
   x = 832.49