Finding the Fourth Proportional to 1,989.98, 2,746.16 and 1,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.98 : 2,746.16 = 1,105.86 : x
2. Step 2: Convert to fraction form
   1,989.98/2,746.16 = 1,105.86/x
3. Step 3: Cross multiply
   1,989.98x = 2,746.16 × 1,105.86
4. Step 4: Simplify right side
   1,989.98x = 3,036,862.97
5. Step 5: Solve for x
   x = 3,036,862.97/1,989.98
6. Step 6: Final answer
   x = 1,526.08