Finding the Fourth Proportional to 1,622.41, 2,434.52 and 756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.41 : 2,434.52 = 756.72 : x
2. Step 2: Convert to fraction form
   1,622.41/2,434.52 = 756.72/x
3. Step 3: Cross multiply
   1,622.41x = 2,434.52 × 756.72
4. Step 4: Simplify right side
   1,622.41x = 1,842,251.87
5. Step 5: Solve for x
   x = 1,842,251.87/1,622.41
6. Step 6: Final answer
   x = 1,135.51