Finding the Fourth Proportional to 1,766.11, 2,648.79 and 670.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.11 : 2,648.79 = 670.09 : x
2. Step 2: Convert to fraction form
   1,766.11/2,648.79 = 670.09/x
3. Step 3: Cross multiply
   1,766.11x = 2,648.79 × 670.09
4. Step 4: Simplify right side
   1,766.11x = 1,774,927.69
5. Step 5: Solve for x
   x = 1,774,927.69/1,766.11
6. Step 6: Final answer
   x = 1,004.99