Finding the Fourth Proportional to 2,057.92, 2,840.20 and 1,173.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.92 : 2,840.20 = 1,173.52 : x
2. Step 2: Convert to fraction form
   2,057.92/2,840.20 = 1,173.52/x
3. Step 3: Cross multiply
   2,057.92x = 2,840.20 × 1,173.52
4. Step 4: Simplify right side
   2,057.92x = 3,333,031.50
5. Step 5: Solve for x
   x = 3,333,031.50/2,057.92
6. Step 6: Final answer
   x = 1,619.61