Finding the Fourth Proportional to 2,972.76, 4,456.17 and 1,023.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972.76 : 4,456.17 = 1,023.72 : x
2. Step 2: Convert to fraction form
   2,972.76/4,456.17 = 1,023.72/x
3. Step 3: Cross multiply
   2,972.76x = 4,456.17 × 1,023.72
4. Step 4: Simplify right side
   2,972.76x = 4,561,870.35
5. Step 5: Solve for x
   x = 4,561,870.35/2,972.76
6. Step 6: Final answer
   x = 1,534.56