Finding the Fourth Proportional to 2,978.72, 4,465.44 and 1,029.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.72 : 4,465.44 = 1,029.56 : x
2. Step 2: Convert to fraction form
   2,978.72/4,465.44 = 1,029.56/x
3. Step 3: Cross multiply
   2,978.72x = 4,465.44 × 1,029.56
4. Step 4: Simplify right side
   2,978.72x = 4,597,438.41
5. Step 5: Solve for x
   x = 4,597,438.41/2,978.72
6. Step 6: Final answer
   x = 1,543.43