Finding the Fourth Proportional to 1,990.01, 2,746.30 and 1,105.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.01 : 2,746.30 = 1,105.81 : x
2. Step 2: Convert to fraction form
   1,990.01/2,746.30 = 1,105.81/x
3. Step 3: Cross multiply
   1,990.01x = 2,746.30 × 1,105.81
4. Step 4: Simplify right side
   1,990.01x = 3,036,888.74
5. Step 5: Solve for x
   x = 3,036,888.74/1,990.01
6. Step 6: Final answer
   x = 1,526.07