Finding the Fourth Proportional to 1,998.16, 2,757.06 and 1,113.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.16 : 2,757.06 = 1,113.82 : x
2. Step 2: Convert to fraction form
   1,998.16/2,757.06 = 1,113.82/x
3. Step 3: Cross multiply
   1,998.16x = 2,757.06 × 1,113.82
4. Step 4: Simplify right side
   1,998.16x = 3,070,868.57
5. Step 5: Solve for x
   x = 3,070,868.57/1,998.16
6. Step 6: Final answer
   x = 1,536.85