Finding the Fourth Proportional to 1,922.92, 2,653.63 and 1,038.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.92 : 2,653.63 = 1,038.72 : x
2. Step 2: Convert to fraction form
   1,922.92/2,653.63 = 1,038.72/x
3. Step 3: Cross multiply
   1,922.92x = 2,653.63 × 1,038.72
4. Step 4: Simplify right side
   1,922.92x = 2,756,375.96
5. Step 5: Solve for x
   x = 2,756,375.96/1,922.92
6. Step 6: Final answer
   x = 1,433.43