Finding the Fourth Proportional to 2,319.52, 3,196.32 and 1,655.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.52 : 3,196.32 = 1,655.20 : x
2. Step 2: Convert to fraction form
   2,319.52/3,196.32 = 1,655.20/x
3. Step 3: Cross multiply
   2,319.52x = 3,196.32 × 1,655.20
4. Step 4: Simplify right side
   2,319.52x = 5,290,548.86
5. Step 5: Solve for x
   x = 5,290,548.86/2,319.52
6. Step 6: Final answer
   x = 2,280.88