Finding the Fourth Proportional to 1,100.51, 1,518.73 and 603.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.51 : 1,518.73 = 603.18 : x
2. Step 2: Convert to fraction form
   1,100.51/1,518.73 = 603.18/x
3. Step 3: Cross multiply
   1,100.51x = 1,518.73 × 603.18
4. Step 4: Simplify right side
   1,100.51x = 916,065.27
5. Step 5: Solve for x
   x = 916,065.27/1,100.51
6. Step 6: Final answer
   x = 832.40