Finding the Fourth Proportional to 1,998.51, 2,757.83 and 1,159.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.51 : 2,757.83 = 1,159.16 : x
2. Step 2: Convert to fraction form
   1,998.51/2,757.83 = 1,159.16/x
3. Step 3: Cross multiply
   1,998.51x = 2,757.83 × 1,159.16
4. Step 4: Simplify right side
   1,998.51x = 3,196,746.64
5. Step 5: Solve for x
   x = 3,196,746.64/1,998.51
6. Step 6: Final answer
   x = 1,599.56