Finding the Fourth Proportional to 1,990.58, 2,746.69 and 1,106.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.58 : 2,746.69 = 1,106.38 : x
2. Step 2: Convert to fraction form
   1,990.58/2,746.69 = 1,106.38/x
3. Step 3: Cross multiply
   1,990.58x = 2,746.69 × 1,106.38
4. Step 4: Simplify right side
   1,990.58x = 3,038,882.88
5. Step 5: Solve for x
   x = 3,038,882.88/1,990.58
6. Step 6: Final answer
   x = 1,526.63