Finding the Fourth Proportional to 1,769.31, 2,653.59 and 673.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,769.31 : 2,653.59 = 673.77 : x
2. Step 2: Convert to fraction form
   1,769.31/2,653.59 = 673.77/x
3. Step 3: Cross multiply
   1,769.31x = 2,653.59 × 673.77
4. Step 4: Simplify right side
   1,769.31x = 1,787,909.33
5. Step 5: Solve for x
   x = 1,787,909.33/1,769.31
6. Step 6: Final answer
   x = 1,010.51