Finding the Fourth Proportional to 2,007.79, 3,012.59 and 1,974.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.79 : 3,012.59 = 1,974.98 : x
2. Step 2: Convert to fraction form
   2,007.79/3,012.59 = 1,974.98/x
3. Step 3: Cross multiply
   2,007.79x = 3,012.59 × 1,974.98
4. Step 4: Simplify right side
   2,007.79x = 5,949,817.47
5. Step 5: Solve for x
   x = 5,949,817.47/2,007.79
6. Step 6: Final answer
   x = 2,963.37