Finding the Fourth Proportional to 1,624.05, 2,434.14 and 1,605.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.05 : 2,434.14 = 1,605.78 : x
2. Step 2: Convert to fraction form
   1,624.05/2,434.14 = 1,605.78/x
3. Step 3: Cross multiply
   1,624.05x = 2,434.14 × 1,605.78
4. Step 4: Simplify right side
   1,624.05x = 3,908,693.33
5. Step 5: Solve for x
   x = 3,908,693.33/1,624.05
6. Step 6: Final answer
   x = 2,406.76