Finding the Fourth Proportional to 1,679.01, 2,316.24 and 1,089.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.01 : 2,316.24 = 1,089.33 : x
2. Step 2: Convert to fraction form
   1,679.01/2,316.24 = 1,089.33/x
3. Step 3: Cross multiply
   1,679.01x = 2,316.24 × 1,089.33
4. Step 4: Simplify right side
   1,679.01x = 2,523,149.72
5. Step 5: Solve for x
   x = 2,523,149.72/1,679.01
6. Step 6: Final answer
   x = 1,502.76