Finding the Fourth Proportional to 1,608.03, 2,218.59 and 1,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.03 : 2,218.59 = 1,109.88 : x
2. Step 2: Convert to fraction form
   1,608.03/2,218.59 = 1,109.88/x
3. Step 3: Cross multiply
   1,608.03x = 2,218.59 × 1,109.88
4. Step 4: Simplify right side
   1,608.03x = 2,462,368.67
5. Step 5: Solve for x
   x = 2,462,368.67/1,608.03
6. Step 6: Final answer
   x = 1,531.30