Finding the Fourth Proportional to 1,990.51, 2,746.91 and 1,106.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.51 : 2,746.91 = 1,106.31 : x
2. Step 2: Convert to fraction form
   1,990.51/2,746.91 = 1,106.31/x
3. Step 3: Cross multiply
   1,990.51x = 2,746.91 × 1,106.31
4. Step 4: Simplify right side
   1,990.51x = 3,038,942.00
5. Step 5: Solve for x
   x = 3,038,942.00/1,990.51
6. Step 6: Final answer
   x = 1,526.71