Finding the Fourth Proportional to 1,751.79, 2,417.60 and 1,089.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,751.79 : 2,417.60 = 1,089.09 : x
2. Step 2: Convert to fraction form
   1,751.79/2,417.60 = 1,089.09/x
3. Step 3: Cross multiply
   1,751.79x = 2,417.60 × 1,089.09
4. Step 4: Simplify right side
   1,751.79x = 2,632,978.54
5. Step 5: Solve for x
   x = 2,632,978.54/1,751.79
6. Step 6: Final answer
   x = 1,503.02