Finding the Fourth Proportional to 2,972.88, 4,460.52 and 1,328.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972.88 : 4,460.52 = 1,328.28 : x
2. Step 2: Convert to fraction form
   2,972.88/4,460.52 = 1,328.28/x
3. Step 3: Cross multiply
   2,972.88x = 4,460.52 × 1,328.28
4. Step 4: Simplify right side
   2,972.88x = 5,924,819.51
5. Step 5: Solve for x
   x = 5,924,819.51/2,972.88
6. Step 6: Final answer
   x = 1,992.96