Finding the Fourth Proportional to 1,970.38, 2,953.75 and 670.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.38 : 2,953.75 = 670.94 : x
2. Step 2: Convert to fraction form
   1,970.38/2,953.75 = 670.94/x
3. Step 3: Cross multiply
   1,970.38x = 2,953.75 × 670.94
4. Step 4: Simplify right side
   1,970.38x = 1,981,789.03
5. Step 5: Solve for x
   x = 1,981,789.03/1,970.38
6. Step 6: Final answer
   x = 1,005.79