Finding the Fourth Proportional to 2,578.32, 3,865.32 and 2,373.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.32 : 3,865.32 = 2,373.30 : x
2. Step 2: Convert to fraction form
   2,578.32/3,865.32 = 2,373.30/x
3. Step 3: Cross multiply
   2,578.32x = 3,865.32 × 2,373.30
4. Step 4: Simplify right side
   2,578.32x = 9,173,563.96
5. Step 5: Solve for x
   x = 9,173,563.96/2,578.32
6. Step 6: Final answer
   x = 3,557.96