Finding the Fourth Proportional to 1,989.84, 2,746.02 and 1,105.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.84 : 2,746.02 = 1,105.71 : x
2. Step 2: Convert to fraction form
   1,989.84/2,746.02 = 1,105.71/x
3. Step 3: Cross multiply
   1,989.84x = 2,746.02 × 1,105.71
4. Step 4: Simplify right side
   1,989.84x = 3,036,301.77
5. Step 5: Solve for x
   x = 3,036,301.77/1,989.84
6. Step 6: Final answer
   x = 1,525.90