Finding the Fourth Proportional to 2,520.42, 3,475.06 and 1,622.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.42 : 3,475.06 = 1,622.64 : x
2. Step 2: Convert to fraction form
   2,520.42/3,475.06 = 1,622.64/x
3. Step 3: Cross multiply
   2,520.42x = 3,475.06 × 1,622.64
4. Step 4: Simplify right side
   2,520.42x = 5,638,763.25
5. Step 5: Solve for x
   x = 5,638,763.25/2,520.42
6. Step 6: Final answer
   x = 2,237.23