Finding the Fourth Proportional to 1,969.89, 2,952.81 and 670.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,969.89 : 2,952.81 = 670.38 : x
2. Step 2: Convert to fraction form
   1,969.89/2,952.81 = 670.38/x
3. Step 3: Cross multiply
   1,969.89x = 2,952.81 × 670.38
4. Step 4: Simplify right side
   1,969.89x = 1,979,504.77
5. Step 5: Solve for x
   x = 1,979,504.77/1,969.89
6. Step 6: Final answer
   x = 1,004.88