Finding the Fourth Proportional to 2,053.28, 2,833.50 and 1,121.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,053.28 : 2,833.50 = 1,121.72 : x
2. Step 2: Convert to fraction form
   2,053.28/2,833.50 = 1,121.72/x
3. Step 3: Cross multiply
   2,053.28x = 2,833.50 × 1,121.72
4. Step 4: Simplify right side
   2,053.28x = 3,178,393.62
5. Step 5: Solve for x
   x = 3,178,393.62/2,053.28
6. Step 6: Final answer
   x = 1,547.96