Finding the Fourth Proportional to 1,624.70, 2,431.59 and 1,351.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.70 : 2,431.59 = 1,351.34 : x
2. Step 2: Convert to fraction form
   1,624.70/2,431.59 = 1,351.34/x
3. Step 3: Cross multiply
   1,624.70x = 2,431.59 × 1,351.34
4. Step 4: Simplify right side
   1,624.70x = 3,285,904.83
5. Step 5: Solve for x
   x = 3,285,904.83/1,624.70
6. Step 6: Final answer
   x = 2,022.47