Finding the Fourth Proportional to 1,990.07, 2,746.37 and 1,105.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.07 : 2,746.37 = 1,105.88 : x
2. Step 2: Convert to fraction form
   1,990.07/2,746.37 = 1,105.88/x
3. Step 3: Cross multiply
   1,990.07x = 2,746.37 × 1,105.88
4. Step 4: Simplify right side
   1,990.07x = 3,037,144.69
5. Step 5: Solve for x
   x = 3,037,144.69/1,990.07
6. Step 6: Final answer
   x = 1,526.15