Finding the Fourth Proportional to 1,989.82, 2,746.03 and 1,105.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.82 : 2,746.03 = 1,105.63 : x
2. Step 2: Convert to fraction form
   1,989.82/2,746.03 = 1,105.63/x
3. Step 3: Cross multiply
   1,989.82x = 2,746.03 × 1,105.63
4. Step 4: Simplify right side
   1,989.82x = 3,036,079.42
5. Step 5: Solve for x
   x = 3,036,079.42/1,989.82
6. Step 6: Final answer
   x = 1,525.81