Finding the Fourth Proportional to 2,173.52, 3,259.28 and 1,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.52 : 3,259.28 = 1,077.50 : x
2. Step 2: Convert to fraction form
   2,173.52/3,259.28 = 1,077.50/x
3. Step 3: Cross multiply
   2,173.52x = 3,259.28 × 1,077.50
4. Step 4: Simplify right side
   2,173.52x = 3,511,874.20
5. Step 5: Solve for x
   x = 3,511,874.20/2,173.52
6. Step 6: Final answer
   x = 1,615.75