Finding the Fourth Proportional to 3,089.20, 4,632.72 and 897.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,089.20 : 4,632.72 = 897.34 : x
2. Step 2: Convert to fraction form
   3,089.20/4,632.72 = 897.34/x
3. Step 3: Cross multiply
   3,089.20x = 4,632.72 × 897.34
4. Step 4: Simplify right side
   3,089.20x = 4,157,124.96
5. Step 5: Solve for x
   x = 4,157,124.96/3,089.20
6. Step 6: Final answer
   x = 1,345.70