Finding the Fourth Proportional to 1,922.28, 2,653.18 and 1,551.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.28 : 2,653.18 = 1,551.72 : x
2. Step 2: Convert to fraction form
   1,922.28/2,653.18 = 1,551.72/x
3. Step 3: Cross multiply
   1,922.28x = 2,653.18 × 1,551.72
4. Step 4: Simplify right side
   1,922.28x = 4,116,992.47
5. Step 5: Solve for x
   x = 4,116,992.47/1,922.28
6. Step 6: Final answer
   x = 2,141.72