Finding the Fourth Proportional to 1,990.30, 2,746.57 and 1,106.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.30 : 2,746.57 = 1,106.10 : x
2. Step 2: Convert to fraction form
   1,990.30/2,746.57 = 1,106.10/x
3. Step 3: Cross multiply
   1,990.30x = 2,746.57 × 1,106.10
4. Step 4: Simplify right side
   1,990.30x = 3,037,981.08
5. Step 5: Solve for x
   x = 3,037,981.08/1,990.30
6. Step 6: Final answer
   x = 1,526.39