Finding the Fourth Proportional to 2,007.72, 3,011.52 and 1,953

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.72 : 3,011.52 = 1,953 : x
2. Step 2: Convert to fraction form
   2,007.72/3,011.52 = 1,953/x
3. Step 3: Cross multiply
   2,007.72x = 3,011.52 × 1,953
4. Step 4: Simplify right side
   2,007.72x = 5,881,498.56
5. Step 5: Solve for x
   x = 5,881,498.56/2,007.72
6. Step 6: Final answer
   x = 2,929.44