Finding the Fourth Proportional to 1,109.00, 1,664.10 and 744.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.00 : 1,664.10 = 744.09 : x
2. Step 2: Convert to fraction form
   1,109.00/1,664.10 = 744.09/x
3. Step 3: Cross multiply
   1,109.00x = 1,664.10 × 744.09
4. Step 4: Simplify right side
   1,109.00x = 1,238,240.17
5. Step 5: Solve for x
   x = 1,238,240.17/1,109.00
6. Step 6: Final answer
   x = 1,116.54