Finding the Fourth Proportional to 1,990.03, 2,746.19 and 1,105.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.03 : 2,746.19 = 1,105.81 : x
2. Step 2: Convert to fraction form
   1,990.03/2,746.19 = 1,105.81/x
3. Step 3: Cross multiply
   1,990.03x = 2,746.19 × 1,105.81
4. Step 4: Simplify right side
   1,990.03x = 3,036,771.23
5. Step 5: Solve for x
   x = 3,036,771.23/1,990.03
6. Step 6: Final answer
   x = 1,525.99