Finding the Fourth Proportional to 2,621.34, 3,617.28 and 1,573.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.34 : 3,617.28 = 1,573.92 : x
2. Step 2: Convert to fraction form
   2,621.34/3,617.28 = 1,573.92/x
3. Step 3: Cross multiply
   2,621.34x = 3,617.28 × 1,573.92
4. Step 4: Simplify right side
   2,621.34x = 5,693,309.34
5. Step 5: Solve for x
   x = 5,693,309.34/2,621.34
6. Step 6: Final answer
   x = 2,171.91