Finding the Fourth Proportional to 2,593.32, 3,889.98 and 645.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,593.32 : 3,889.98 = 645.52 : x
2. Step 2: Convert to fraction form
   2,593.32/3,889.98 = 645.52/x
3. Step 3: Cross multiply
   2,593.32x = 3,889.98 × 645.52
4. Step 4: Simplify right side
   2,593.32x = 2,511,059.89
5. Step 5: Solve for x
   x = 2,511,059.89/2,593.32
6. Step 6: Final answer
   x = 968.28