Finding the Fourth Proportional to 1,622.55, 2,434.00 and 452.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.55 : 2,434.00 = 452.56 : x
2. Step 2: Convert to fraction form
   1,622.55/2,434.00 = 452.56/x
3. Step 3: Cross multiply
   1,622.55x = 2,434.00 × 452.56
4. Step 4: Simplify right side
   1,622.55x = 1,101,516.61
5. Step 5: Solve for x
   x = 1,101,516.61/1,622.55
6. Step 6: Final answer
   x = 678.88