Finding the Fourth Proportional to 1,749.47, 2,623.25 and 1,089.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749.47 : 2,623.25 = 1,089.72 : x
2. Step 2: Convert to fraction form
   1,749.47/2,623.25 = 1,089.72/x
3. Step 3: Cross multiply
   1,749.47x = 2,623.25 × 1,089.72
4. Step 4: Simplify right side
   1,749.47x = 2,858,610.71
5. Step 5: Solve for x
   x = 2,858,610.71/1,749.47
6. Step 6: Final answer
   x = 1,633.99