Finding the Fourth Proportional to 1,990.40, 2,746.76 and 1,106.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.40 : 2,746.76 = 1,106.18 : x
2. Step 2: Convert to fraction form
   1,990.40/2,746.76 = 1,106.18/x
3. Step 3: Cross multiply
   1,990.40x = 2,746.76 × 1,106.18
4. Step 4: Simplify right side
   1,990.40x = 3,038,410.98
5. Step 5: Solve for x
   x = 3,038,410.98/1,990.40
6. Step 6: Final answer
   x = 1,526.53