Finding the Fourth Proportional to 2,972.53, 4,458.77 and 892.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,972.53 : 4,458.77 = 892.71 : x
2. Step 2: Convert to fraction form
   2,972.53/4,458.77 = 892.71/x
3. Step 3: Cross multiply
   2,972.53x = 4,458.77 × 892.71
4. Step 4: Simplify right side
   2,972.53x = 3,980,384.94
5. Step 5: Solve for x
   x = 3,980,384.94/2,972.53
6. Step 6: Final answer
   x = 1,339.06